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Institut für Nukleare Entsorgung (INE)

 

  • Startseite
  • Forschung
  • Radionuklidspeziation / Analytik
  • Hochauflösende Emissions-spektroskopie

 

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    • Das INE
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The High Resolution X-ray Spectroscopy Group

Die Gruppe unter der Leitung von Dr. Tonya Vitova untersucht in systematischer Weise die elektronische und koordinative Struktur sowohl von Actinid (An)-Verbindungen, als auch von chemisch homologen Lanthaniden (Ln). Hierbei kommen die auf Synchrotronstrahlung basierenden innovativen Methoden der hochauflösenden Röntgenfluoreszenzemission (HRXES) und der inelastischen Röntgenstreuung (RIXS) zum Einsatz. Experimentelle Ergebnisse werden durch Vergleich mit theoretischen Rechnungen und Simulationen auf der Basis quantenchemischer Verfahren interpretiert. Das Ziel der Untersuchungen ist eine Verbesserung des Verständnisses der Reaktivität von An/Ln-Species auf molekularer Ebene in den verschiedenen technischen und geologischen Barrieren eines Endlagers, um hierdurch die Zuverlässigkeit von Modellrechnungen zur Langzeitsicherheit zu erhöhen. Die Aufklärung der elektronischen und der Koordinations-Struktur von An- und Ln-Systemen gewährt eine grundlegende Einsicht in den Zusammenhang von elektronischer Struktur und chemischer Reaktivität von Actinid-Elementen.

ERC Consolidator Grant – The Actinide Bond – Actinide Bond Properties in Gas, Liquid and Solid State

Dr. Tonya Vitova erhielt im 2020 vom Europäischen Forschungsrat (European Research Council – ERC) einen Consolidator Grant für ihr Projekt:  „The Actinide Bond“ (Grant agreement ID: 101003292). Die frühen Actiniden, das heißt die im Periodensystem aufeinanderfolgenden chemischen Elemente von Thorium bis Curium, stellen die physikalische und chemische Grundlagenforschung vor große Herausforderungen: Das Verständnis der Elektronenstruktur und des Bindungsverhaltens dieser radioaktiven Elemente ermöglicht unter anderem die Entwicklung fortschrittlicher pharmazeutischer Wirkstoffe zur gezielten Behandlung von Krebserkrankungen sowie die Entwicklung neuer Sanierungsmethoden für radioaktiv kontaminierte Gebiete und ein verbessertes Verständnis des Verhaltens der Actiniden in der Umwelt. Dr. Tonya Vitova, Leiterin der Gruppe Hochauflösende Emissionsspektroskopie am Institut für Nukleare Entsorgung (INE) des KIT, konzentriert sich in ihrem Projekt „The Actinide Bond – Actinide Bond Properties in Gas, Liquid and Solid State“ auf den Zusammenhang zwischen der Kovalenz und der Stärke der chemischen Bindung der Actiniden in gasförmigen, flüssigen und festen Materialien. Sie nutzt die am INE verfügbaren radiochemischen Labore und verbindet auf Synchrotronstrahlung basierende röntgenspektroskopische Methoden mit quantenchemischen Berechnungen, um Verfahren zur Auswahl von geeigneten Actinid-Materialien oder Komplexbildern für verschiedene Anwendungen zu entwickeln. Von wesentlicher Bedeutung für ihre Arbeit sind innovative Technologien, die auf der hochintensiven Synchrotronstrahlung der KIT Light Source auf dem Campus Nord des KIT basieren.

 

 

Ansprechpartner:

Dr. Tonya Vitova     

   +49 721 608 24024

 

The Team

Group Leader

Teaching activities:

  • Karlsruhe Institute of Technology
  • Faculty of Chemistry and Biosciences
  • Winter Semester Lecture “Instrumental Analytics”

Tonya Vitova

Tonya.Vitova∂kit.edu

+49 721 608 24024

 

 

 

Members

Natalia Müller, KIT

natalia.mueller∂kit.edu

+49 721 608-24602

Christian Vollmer, KIT

christian.vollmer∂kit.edu

+49 721 608-2xxxx

Bianca Schacherl, KIT

bianca.schacherl∂kit.edu

+49 721 608-28754

Aaron Beck, KIT

aaron.beck∂kit.edu

+49 721 608-28079

Jurij Galanzew, KIT

Jurij.Galanzew∂kit.edu

+49 721 608-22185

Project:

"High resolution ligand spectroscopy of actinide systems"

 

 

_________

PhD Project:

“Investigations of actinide structural properties in solid, liquid and gas state applying high-energy resolution X-ray emission/absorption spectroscopy”

_________

PhD Project:

“Investigations of actinide structural properties in model and geochemical systems applying high-energy resolution X-ray emission/absorption spectroscopy”

_________

                

PhD Project:

"High energy resolution X-ray spectroscopy investigations of nuclear waste"

 

_________

 

HGF, HYIG

PhD Project:

"High energy resolution X-ray spectroscopy and computational studies of Uranium interaction with magnetite and siderite"

 

_________

 

HGF (KIT-INE)

 

 

Former members

Thomas Neill, University of Manchester, UK

2019 - 2021 : Post Doc project

“The aquatic chemistry and electronic structure properties of actinides using high-resolution X-ray methods.”

 

 

Christian Vollmer, Karlsruhe Institute of Technology (KIT), Germany

 

1.02.2021 – 30.08.2021 : Master thesis

 “Advanced uranium M4,5-edge X-ray spectroscopic investigations of uranium carbonate species in solid and liquid state in multiple oxidation states””

Bianca Schacherl, Karlsruhe Institute of Technology (KIT), Germany

 

03.2018 - 09.2018: Master thesis

“Speciation of Np in illite by X-ray spectroscopy methods”

Jurij Galanzew, Karlsruhe Institute of Technology (KIT), Germany

 

09.2017 - 03.2018: Master thesis

“Electronic structure studies of Th systems by high energy resolution X-ray spectroscopy and computational methods”

Aaron Beck, Karlsruhe Institute of Technology (KIT), Germany

 

12.2016 - 06.2017: Master thesis

“Immobilization of cesium- and rhenium-rich simulated high level solid waste residues in different host matrices”

Sebastian Bahl, Karlsruhe Institute of Technology (KIT), Germany

 

2013 - 2017: PhD project

“Characterisation of nuclear waste glass forms by advanced spectroscopy and microscopy techniques”

Alisa Prokopchuk, Karlsruhe Institute of Technology (KIT), Germany

 

10.2016 - 04.2017: Master thesis

„Preparation of Rb2UO2X4 compounds (X= F,Cl,Br) and characterizytion of bonding differences by spectroscopy and quantum chemical methods“

Ivan Pidchenko, Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology (KIT), Germany

 

10.2016 - 04.2017: PhD project

2017 - Postdoc

„Characterisation of actinide species in systems relevant for safety assessment of a nuclear waste repository by high-resolution X-ray emission/absorption spectroscopy“

Tim Prüßmann, Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology (KIT), Germany

 

07.2011 - 04.2015: PhD project

„Characterization of bonding differences by advanced synchrotron based X-ray spectroscopy“

Sebastian Bahl, Karlsruhe Institute of Technology (KIT), Germany

 

02.2013 - 07.2013: Diploma thesis

„Charakterisierung von verglasten, hochradioaktiven, Mo/P/Zr/Cs-reichen Simulatabfällen mittels verschiedener spektroskopischer Techniken“, Grade: 1.0 (highest in Germany)

Veronika Koldeisz, Budapest University of Technology and Economics (BME), Hungary

 

09.2013 – 07.2014: Master's thesis

“Characterization of uranium in multi-component borosilicate glass by high-energy resolution X-ray spectroscopy techniques”, Grade: 5.0 (highest in Hungary)

Paul Estevenon, École Nationale Supérieure de Chimie de Montpellier (ENSCM), France

 

06.2014 - 09.2014: Internship

"Characterization of simulated Tc- and Cs-rich solid waste residue"

 

Andrea Kutzer, Karlsruhe Institute of Technology (KIT), Germany

 

2011 - 2014: PhD project

“Untersuchungen zum Inkorporationsverhalten von simulierten HLW-Borosilikatgläsern zur Immobilisierung Mo(VI)-reicher Abfälle”

 

Alexander Ernst, Karlsruhe Institute of Technology (KIT)

 

04.2012 - 09.2012: practical part of “berufliche Ausbildung”

"Design and technical drawings of positioning part of a detector positioning assembly"

 

 

Valentine Traunfelder, Karlsruhe Institute of Technology (KIT)

 

04.2013 – 01.2014: practical part of “berufliche Ausbildung”

“Design and technical drawings of liquid cells for M edge high resolution X-ray absorption spectroscopy studies of actinide materials”

 

 

 

Internship students

Heloise Morin, École des Mines de Nantes (Mines Nantes), France

 

05.2011 - 08.2011

“Measurements, data reduction and comparison of N K-edge XANES spectra of n-Pr-BTP ligand and [Ln(n-Pr-BTP)3](NO3)3 complexes”

 

Bastien Gademann, National Graduate School of Chemistry of Montpellier (ENSCM), France

 

06.2012 - 09.2012

“Alignment procedure of a multi-analyzer crystal X-ray emission spectrometer using SPEC macros”

 

Stelyana Lechchanska, Technical University of Sofia (TU Sofia), Bulgaria

 

07.2013 - 09.2013

“Design and technical drawings of a slit system, an integral part of the multi-analyzer crystals X-ray emission spectrometer”

 

 

 

 

Guest scientists

Aurora Walesh, Trinity Collage Dublin (TCD), School of Chemistry, Ireland

 

4.03.2013 - 15.03.2013: Short term scientific mission

“Structural characterization of UO2 alteration products by X-ray techniques”

Funded by COST: European cooperation in science and technology

Yulia Podkovyrina, Southern Federal University (SFedU) Rostov-on-Don, Russia

 

02.2014 –03.2014: Scholarship

“Quantum chemical calculations of HR-XANES M edge spectra of uranium oxides”

Funded by German Russian Interdisciplinary Science Center (G-RISC)

10.2014 –03.2015: Scholarship

“Optimization of structures describing U sorption and incorporation into magnetite”

Funded by German Academic Exchange Service (DAAD)

Prof. Robert Baker, Trinity College Dublin (TCD), School of Chemistry, Ireland

 

01.2015- 03.2015: TALISMAN project

 “Neptunium Incorporation into Minerals: A Synthetic and X-ray Spectroscopic Study”

ERC Consolidator Grant 2020

 

The ACTINIDE BOND properties in gas, liquid and solid state

 

https://cordis.europa.eu/project/id/101003292

 

Description of the project:

Understanding the electronic structure and chemical bonding properties of the early actinide (An) elements (Th-Cm) poses a great challenge and frontier in fundamental chemistry and physics. We aim to clarify the link between covalency and strength of the chemical bond of the early An elements from Th to Cm in gas, liquid and solid state materials - combining innovative high challenge experimental setups, advanced synchrotron based spectroscopy methods and state-of-the-art quantum chemical computations. The RIXS and HR-XANES methods probe the occupied and unoccupied parts of the valence band with extraordinary energy resolution and, when combined for the metal and the ligand, unique information on the chemical bond can be obtained. We will gain a deep understanding of the An bond formation mechanisms and will develop spectroscopy methodologies with high potential for a breakthrough in efforts, e.g., to select ligands and An materials with specific characteristics. Ligands and materials with tailored properties are needed for example for developing advanced pharmaceutical compounds for targeted cancer treatment. A deep insight into the An electronic structures is also essential for developing innovative spent nuclear fuel matrices and to understand actinide environmental behaviour e.g. in contaminated sites. The new spectroscopy approaches are also expected to boost the advances of quantum chemical theoretical methods. Those are most challenged by the An atoms due to their large number of valence electrons and prevailing influence of relativistic effects in their electronic structure behaviour.

 

Publications:

 

The mechanism of Fe induced bond stability of uranyl( v )

Vitova, T.; Faizova, R.; Amaro-Estrada, J. I.; Maron, L.; Pruessmann, T.; Neill, T.; Beck, A.; Schacherl, B.; Tirani, F. F.; Mazzanti, M.

Chem. Sci. (2022) 13, 11038-11047
 
doi:10.1039/D2SC03416F
 
https://pubs.rsc.org/en/journals/journalissues/sc

Implementation of cryogenic tender X-ray HR-XANES spectroscopy at the ACT station of the CAT-ACT beamline at the KIT Light Source

B. Schacherl, T. Prüssmann, K. Dardenne, K. Hardock, V. Krepper, J. Rothe, T. Vitova and H. Geckeis

J. Synchrotron Rad. (2022) 29, 80-88

 

https://doi.org/10.1107/S1600577521012650

Relativistic Multiconfigurational Ab Initio Calculation of Uranyl 3d4f Resonant Inelastic X-ray Scattering.

Polly, R.; Schacherl, B.; Rothe, J.; Vitova, T.

Inorg. Chem. (2021) 60, 24, 18764–18776

 

doi:10.1021/acs.inorgchem.1c02364

Computational and Spectroscopic Tools for the Detection of Bond Covalency in Pu(IV) Materials.

Bagus, P. S.; Schacherl, B.; Vitova, T.

Inorg. Chem. (2021) 60, 21, 16090–16102

 

doi:10.1021/acs.inorgchem.1c01331

 

 

Recent Highlights

2022: EDGE article - The mechanism of Fe induced bond stability of uranyl(v), Tonya Vitova, Laurent Maron, Marinella Mazzanti et al.

https://pubs.rsc.org/en/journals/journalissues/sc

 

DOI: 10.1039/d2sc03416f

2020-2022: We upgraded our experimental set-up and can measure now actinide M4,5 edge HR-XANES spectra for geochemical samples containing 1 ppm of the actinide element at cryogenic temperatures.


https://doi.org/10.1016/j.aca.2022.339636

 

2020 : Success with the proposal ERC Consolidator Grant 2020!

https://cordis.europa.eu/project/id/101003292

The ACTINIDE BOND properties in gas, liquid and solid state

 

 

2017 and 2019: We made available new spectroscopy approaches and gained new insights into the covalency of the chemical bonding of the most studied molecules in actinide science - the actinyls

doi:10.1038/ncomms16053 

 

 

doi:10.1039/C8SC05717F 

 

 

 

 

2017 and 2019: First An M4,5 HR-XANES and RIXS electronic and geometric structure studies probing the 5f unoccupied states of systems in liquid and solid states containing transuranium elements like Pu and Np

doi:10.1021/acs.inorgchem.7b02118 

 

2017: Applying the U M4 HR-XANES method, we demonstrated that U(V) can be stable in magnetite even in air
doi:10.1021/acs.est.6b04035

 

Invitation to the themed collection: New molecules and materials from the f-block of ChemComm

doi:10.1039/c8cc06889e

 

Invitation to the Inorganic Chemistry forum: Innovative f-Element Chelating Strategies

doi:10.1021/acs.inorgchem.9b02463

 

   

 

 

 

The Instrumentation

High energy resolution X-ray emission spectrometer
3D view of the He Box KIT-INE
3D View of the He Box and MAC-spectrometer
Abt4_Gr1_bild1.jpg T. Vitova
Np M5 edge HR-XANES spectra of 83 or 1 ppm Np sorbed on the clay mineral illite.
He Box with electrochemical cell KIT-INE
He-Box with in-situ electrochemical cell

The utility of high energy resolution X-ray absorption near edge structure (HR-XANES), X-ray emission (XES) and resonant inelastic X-ray scattering (RIXS) spectroscopy techniques in studies of An elements was the motivator for installing and commissioning a multi-analyzer Johann type X-ray emission spectrometer (MAC-spectrometer, see the figure above) at the . INE-Beamline for actinide research at the KARA synchrotron radiation facility, Karlsruhe, Germany. The MAC-spectrometer is ultimately destined to be the central instrument at the radioactive end station of the newly constructed beamline for catalysis and actinide research (CAT-ACT-Beamline, beginning operation in 2016). The MAC-spectrometer is an adapted design of the XES spectrometer at the ID26 Beamline, ESRF, Grenoble, France, containing five spherically bent analyzer crystals with 1 m bending radius. Our set-up is optimized for An M4,5 edge HR-XANES and XES/RIXS experiments; absorption of 3-4 keV photons by air is minimized by a He environment enclosing sample, crystals, and detector, thereby enhancing efficiency. This instrument, combined with access to the controlled area laboratory at INE in close proximity, is worldwide unique, enabling An M4,5 edge HR-XANES and XES/RIXS investigations of solid and liquid phase radioactive materials, including those under extreme conditions. The Figure1 depicts the Np M5 edge HR-XANES spectra of 83 or 1 ppm Np sorbed on the clay mineral illite. The newly installed cryostat, possible to use down to 3 keV incident X-ray energy, is also shown.

 

1 Paving the way for examination of coupled redox/solid-liquid interface reactions: 1 ppm Np adsorbed on clay studied by Np M5-edge HR-XANES spectroscopy.
Schacherl, B.; Joseph, C.; Lavrova, P.; Beck, A.; Reitz, C.; Prüssmann, T.; Fellhauer, D.; Lee, J.-Y.; Dardenne, K.; Rothe, J.; Geckeis, H.; Vitova, T.
Analytica Chimica Acta 1202 (2022) 339636
https://doi.org/10.1016/j.aca.2022.339636

Publications


2022
Zeitschriftenaufsätze
Interlink between solubility, structure, surface and thermodynamics in the ThO2(s, hyd)–H2O(l) system
Kiefer, C.; Neill, T.; Cevirim-Papaioannou, N.; Schild, D.; Gaona, X.; Vitova, T.; Dardenne, K.; Rothe, J.; Altmaier, M.; Geckeis, H.
2022. Frontiers in Chemistry, 10, Art.-Nr.: 1042709. doi:10.3389/fchem.2022.1042709
Lattice dynamics of β − FeSi₂ nanorods
Kalt, J.; Sternik, M.; Sergeev, I.; Mikolasek, M.; Bessas, D.; Göttlicher, J.; Krause, B.; Vitova, T.; Steininger, R.; Sikora, O.; Jochym, P. T.; Leupold, O.; Wille, H.-C.; Chumakov, A. I.; Piekarz, P.; Parlinski, K.; Baumbach, T.; Stankov, S.
2022. Physical Review B, 106 (20), Article no: 205411. doi:10.1103/PhysRevB.106.205411
Synthesis and characterization of homogeneous (U,Am)O₂ and (U,Pu,Am)O₂ nanopowders
Vigier, J.-F.; Freis, D.; Walter, O.; Dieste Blanco, O.; Bouëxière, D.; Zuleger, E.; Palina, N.; Vitova, T.; Konings, R. J. M.; Popa, K.
2022. CrystEngComm, 24 (36), 6338–6348. doi:10.1039/d2ce00527a
The mechanism of Fe induced bond stability of uranyl( v )
Vitova, T.; Faizova, R.; Amaro-Estrada, J. I.; Maron, L.; Pruessmann, T.; Neill, T.; Beck, A.; Schacherl, B.; Tirani, F. F.; Mazzanti, M.
2022. Chemical Science, 13 (37), 11038–11047. doi:10.1039/D2SC03416F
X-ray spectroscopic study of chemical state in uranium carbides
Butorin, S. M.; Bauters, S.; Amidani, L.; Beck, A.; Weiss, S.; Vitova, T.; Tougait, O.
2022. Journal of Synchrotron Radiation, 29 (2), 295–302. doi:10.1107/S160057752101314X
Insights into the Electronic Structure of a U(IV) Amido and U(V) Imido Complex
Köhler, L.; Patzschke, M.; Bauters, S.; Vitova, T.; Butorin, S. M.; Kvashnina, K. O.; Schmidt, M.; Stumpf, T.; März, J.
2022. Chemistry - A European Journal, 28 (21), Art.-Nr. e202200119. doi:10.1002/chem.202200119
Atomic controllable anchoring of uranium into zirconate pyrochlore with ultrahigh loading capacity
Sun, J.; Zhou, J.; Li, L.; Hu, Z.; Chan, T.-S.; Vitova, T.; Song, S.; Liu, R.; Jing, C.; Yu, H.; Zhang, M.; Rothe, J.; Wang, J.-Q.; Zhang, L.
2022. Chemical Communications, 58 (21), 3469–3472. doi:10.1039/d2cc00576j
Paving the way for examination of coupled redox/solid-liquid interface reactions: 1 ppm Np adsorbed on clay studied by Np M5-edge HR-XANES spectroscopy
Schacherl, B.; Joseph, C.; Lavrova, P.; Beck, A.; Reitz, C.; Prüssmann, T.; Fellhauer, D.; Lee, J.-Y.; Dardenne, K.; Rothe, J.; Geckeis, H.; Vitova, T.
2022. Analytica chimica acta, 1202, Art.Nr.: 339636. doi:10.1016/j.aca.2022.339636
Persistence of the Isotopic Signature of Pentavalent Uranium in Magnetite
Pan, Z.; Roebbert, Y.; Beck, A.; Bartova, B.; Vitova, T.; Weyer, S.; Bernier-Latmani, R.
2022. Environmental Science and Technology, 56 (3), 1753–1762. doi:10.1021/acs.est.1c06865
Open questions on bonding involving lanthanide atoms
Vitova, T.; Roesky, P. W.; Dehnen, S.
2022. Communications chemistry, 5, Art.-Nr. 12. doi:10.1038/s42004-022-00630-6
Opportunities and challenges of applying advanced X-ray spectroscopy to actinide and lanthanide N-donor ligand systems
Prüßmann, T.; Nagel, P.; Simonelli, L.; Batchelor, D.; Gordon, R.; Schimmelpfennig, B.; Trumm, M.; Vitova, T.
2022. Journal of synchrotron radiation, 29 (1), 53–66. doi:10.1107/S1600577521012091
Implementation of cryogenic tender X-ray HR-XANES spectroscopy at the ACT station of the CAT-ACT beamline at the KIT Light Source
Schacherl, B.; Prüssmann, T.; Dardenne, K.; Hardock, K.; Krepper, V.; Rothe, J.; Vitova, T.; Geckeis, H.
2022. Journal of synchrotron radiation, 29 (1), 80–88. doi:10.1107/S1600577521012650
Effect of manganese on the speciation of neptunium(V) on manganese doped magnetites
Kumar, S.; Rothe, J.; Finck, N.; Vitova, T.; Dardenne, K.; Beck, A.; Schild, D.; Geckeis, H.
2022. Colloids and surfaces / A, 635, Article no: 128105. doi:10.1016/j.colsurfa.2021.128105
2021
Zeitschriftenaufsätze
Fe(II) Induced Reduction of Incorporated U(VI) to U(V) in Goethite
Stagg, O.; Morris, K.; Lam, A.; Navrotsky, A.; Velázquez, J. M.; Schacherl, B.; Vitova, T.; Rothe, J.; Galanzew, J.; Neumann, A.; Lythgoe, P.; Abrahamsen-Mills, L.; Shaw, S.
2021. Environmental Science and Technology, 55 (24), 16445–16454. doi:10.1021/acs.est.1c06197
Relativistic Multiconfigurational Ab Initio Calculation of Uranyl 3d4f Resonant Inelastic X-ray Scattering
Polly, R.; Schacherl, B.; Rothe, J.; Vitova, T.
2021. Inorganic chemistry, 60 (24), 18764–18776. doi:10.1021/acs.inorgchem.1c02364
Computational and Spectroscopic Tools for the Detection of Bond Covalency in Pu(IV) Materials
Bagus, P. S.; Schacherl, B.; Vitova, T.
2021. Inorganic chemistry, 60 (21), 16090–16102. doi:10.1021/acs.inorgchem.1c01331
Uranium remobilisation in anoxic deep rock-groundwater system in response to late Quaternary climate changes – Results from Forsmark, Sweden
Suksi, J.; Tullborg, E.-L.; Pidchenko, I.; Krall, L.; Sandström, B.; Kaksonen, K.; Vitova, T.; Kvashnina, K. O.; Göttlicher, J.
2021. Chemical Geology, 584, Art.-Nr.: 120551. doi:10.1016/j.chemgeo.2021.120551
Charge Distribution in U1−xCexO2+y Nanoparticles
Prieur, D.; Vigier, J.-F.; Popa, K.; Walter, O.; Dieste, O.; Varga, Z.; Beck, A.; Vitova, T.; Scheinost, A. C.; Martin, P. M.
2021. Inorganic Chemistry, 60 (19), 14550–14556. doi:10.1021/acs.inorgchem.1c01071
Uranium solubility and speciation in reductive soda-lime aluminosilicate glass melts
Chevreux, P.; Tissandier, L.; Laplace, A.; Vitova, T.; Bahl, S.; Guyadec, F. L.; Deloule, E.
2021. Journal of nuclear materials, 544, Art.-Nr.: 152666. doi:10.1016/j.jnucmat.2020.152666
Towards Heteroleptic Dicoordinate Cu(II) Complexes
Kaiser, M.; Göttlicher, J.; Vitova, T.; Hinz, A.
2021. Chemistry - a European journal, 27 (30), 7998–8002. doi:10.1002/chem.202100888
Biological Reduction of a U(V)-Organic Ligand Complex
Molinas, M.; Faizova, R.; Brown, A.; Galanzew, J.; Schacherl, B.; Bartova, B.; Meibom, K. L.; Vitova, T.; Mazzanti, M.; Bernier-Latmani, R.
2021. Environmental Science and Technology, 55 (8), 4753–4761. doi:10.1021/acs.est.0c06633
Sulfidation of magnetite with incorporated uranium
Townsend, L. T.; Morris, K.; Harrison, R.; Schacherl, B.; Vitova, T.; Kovarik, L.; Pearce, C. I.; Mosselmans, J. F. W.; Shaw, S.
2021. Chemosphere, 276, Art.-Nr.: 130117. doi:10.1016/j.chemosphere.2021.130117
Insight into the structure-property relationship of UO2 nanoparticles
Gerber, E.; Romanchuk, A. Y.; Weiss, S.; Bauters, S.; Schacherl, B.; Vitova, T.; Hübner, R.; Shams Aldin Azzam, S.; Detollenaere, D.; Banerjee, D.; Butorin, S. M.; Kalmykov, S. N.; Kvashnina, K. O.
2021. Inorganic Chemistry Frontiers, 8 (4), 1102–1110. doi:10.1039/d0qi01140a
Chemical and structural investigations on uranium oxide-based microparticles as reference materials for analytical measurements
Kegler, P.; Pointurier, F.; Rothe, J.; Dardenne, K.; Vitova, T.; Beck, A.; Hammerich, S.; Potts, S.; Faure, A.-L.; Klinkenberg, M.; Kreft, F.; Niemeyer, I.; Bosbach, D.; Neumeier, S.
2021. MRS advances, 6, 126–134. doi:10.1557/s43580-021-00024-1
2020
Zeitschriftenaufsätze
Lattice dynamics of endotaxial silicide nanowires
Kalt, J.; Sternik, M.; Krause, B.; Sergueev, I.; Mikolasek, M.; Merkel, D.; Bessas, D.; Sikora, O.; Vitova, T.; Göttlicher, J.; Steininger, R.; Jochym, P. T.; Ptok, A.; Leupold, O.; Wille, H.-C.; Chumakov, A. I.; Piekarz, P.; Parlinski, K.; Baumbach, T.; Stankov, S.
2020. Physical review / B, 102 (19), Art.-Nr.: 195414. doi:10.1103/PhysRevB.102.195414
Synthesis and characterization of nanocrystalline U1−xPuxO2(+y) mixed oxides
Kauric, G.; Walter, O.; Beck, A.; Schacherl, B.; Dieste Blanco, O.; Vigier, J.-F.; Zuleger, E.; Vitova, T.; Popa, K.
2020. Materials today advances, 8, Art.-Nr.: 100105. doi:10.1016/j.mtadv.2020.100105
Size Dependence of Lattice Parameter and Electronic Structure in CeO₂ Nanoparticles
Prieur, D.; Bonani, W.; Popa, K.; Walter, O.; Kriegsman, K. W.; Engelhard, M. H.; Guo, X.; Eloirdi, R.; Gouder, T.; Beck, A.; Vitova, T.; Scheinost, A. C.; Kvashnina, K.; Martin, P.
2020. Inorganic chemistry, 59 (8), 5760–5767. doi:10.1021/acs.inorgchem.0c00506
Lattice dynamics and polarization-dependent phonon damping in α-phase FeSi2 nanostructures
Kalt, J.; Sternik, M.; Krause, B.; Sergueev, I.; Mikolasek, M.; Bessas, D.; Sikora, O.; Vitova, T.; Göttlicher, J.; Steininger, R.; Jochym, P. T.; Ptok, A.; Leupold, O.; Wille, H.-C.; Chumakov, A. I.; Piekarz, P.; Parlinski, K.; Baumbach, T.; Stankov, S.
2020. Physical review / B, 101 (16), Art.-Nr.: 165406. doi:10.1103/PhysRevB.101.165406
Multiple Lines of Evidence Identify U(V) as a Key Intermediate during U(VI) Reduction by MR1
Vettese, G. F.; Morris, K.; Natrajan, L. S.; Shaw, S.; Vitova, T.; Galanzew, J.; Jones, D. L.; Lloyd, J. R.
2020. Environmental science & technology, 54 (4), 2268–2276. doi:10.1021/acs.est.9b05285
Competitive Reaction of Neptunium(V) and Uranium(VI) in Potassium–Sodium Carbonate-Rich Aqueous Media: Speciation Study with a Focus on High-Resolution X-ray Spectroscopy
Vitova, T.; Pidchenko, I.; Schild, D.; Prüßmann, T.; Montoya, V.; Fellhauer, D.; Gaona, X.; Bohnert, E.; Rothe, J.; Baker, R. J.; Geckeis, H.
2020. Inorganic chemistry, 59 (1), 8–22. doi:10.1021/acs.inorgchem.9b02463
Melting behaviour of uranium-americium mixed oxides under different atmospheres
Epifano, E.; Prieur, D.; Martin, P. M.; Guéneau, C.; Dardenne, K.; Rothe, J.; Vitova, T.; Dieste, O.; Wiss, T.; Konings, R. J. M.; Manara, D.
2020. The journal of chemical thermodynamics, 140, Article No.105896. doi:10.1016/j.jct.2019.105896
2019
Zeitschriftenaufsätze
Probing Actinide Covalency: Plutonium Electronic Structure Studies Using High Energy Resolution X-Ray Spectroscopy
Vitova, T.; Geckeis, H.; Bagus, P. S.
2019. Actinide research quarterly, 2019 (October), 10–14
Differential uranyl(v) oxo-group bonding between the uranium and metal cations from groups 1, 2, 4, and 12; a high energy resolution X-ray absorption, computational, and synthetic study
Zegke, M.; Zhang, X.; Pidchenko, I.; Hlina, J. A.; Lord, R. M.; Purkis, J.; Nichol, G. S.; Magnani, N.; Schreckenbach, G.; Vitova, T.; Love, J. B.; Arnold, P. L.
2019. Chemical science, 10 (42), 9740–9751. doi:10.1039/C8SC05717F
Silicate stabilisation of colloidal UO₂ produced by uranium metal corrosion
Neill, T. S.; Morris, K.; Pearce, C. I.; Abrahamsen-Mills, L.; Kovarik, L.; Kellet, S.; Rigby, B.; Vitova, T.; Schacherl, B.; Shaw, S.
2019. Journal of nuclear materials, 526, Article No.151751. doi:10.1016/j.jnucmat.2019.151751
Extreme multi-valence states in mixed actinide oxides
Epifano, E.; Naji, M.; Manara, D.; Scheinost, A. C.; Hennig, C.; Lechelle, J.; Konings, R. J. M.; Guéneau, C.; Prieur, D.; Vitova, T.; Dardenne, K.; Rothe, J.; Martin, P. M.
2019. Communications chemistry, 2 (1), 59. doi:10.1038/s42004-019-0161-0
Fifteen Years of Radionuclide Research at the KIT Synchrotron Source in the Context of the Nuclear Waste Disposal Safety Case
Rothe, J.; Altmaier, M.; Dagan, R.; Dardenne, K.; Fellhauer, D.; Gaona, X.; Corrales, E. G.-R.; Herm, M.; Kvashnina, K. O.; Metz, V.; Pidchenko, I.; Schild, D.; Vitova, T.; Geckeis, and H.
2019. Geosciences, 9 (2), Article No.91. doi:10.3390/geosciences9020091
2018
Zeitschriftenaufsätze
Exploring the electronic structure and speciation of aqueous and colloidal Pu with high energy resolution XANES and computations
Vitova, T.; Pidchenko, I.; Fellhauer, D.; Pruessmann, T.; Bahl, S.; Dardenne, K.; Yokosawa, T.; Schimmelpfennig, B.; Altmaier, M.; Denecke, M.; Rothe, J.; Geckeis, H.
2018. Chemical communications, 54 (91), 12824–12827. doi:10.1039/c8cc06889e
Uptake of actinides by calcium silicate hydrate (C-S-H) phases
Häußler, V.; Amayri, S.; Beck, A.; Platte, T.; Stern, T. A.; Vitova, T.; Reich, T.
2018. Applied geochemistry, 98, 426–434. doi:10.1016/j.apgeochem.2018.08.021
Dehydration of the Uranyl Peroxide Studtite, [UO₂(η²-O₂)(H₂O)₂]·2H₂O, Affords a Drastic Change in the Electronic Structure: A Combined X-ray Spectroscopic and Theoretical Analysis
Vitova, T.; Pidchenko, I.; Biswas, S.; Beridze, G.; Dunne, P. W.; Schild, D.; Wang, Z.; Kowalski, P. M.; Baker, R. J.
2018. Inorganic chemistry, 57 (4), 1735–1743. doi:10.1021/acs.inorgchem.7b02326
Proceedingsbeiträge
Pu electronic structure and speciation applying Pu M5 edge HR-XANES and RIXS
Vitova, T.
2018. Plutonium Futures: The Science 2018; Wyndham San Diego BaysideSan Diego; United States; 9 September 2018 through 14 September 2018, 377, ANS
2017
Zeitschriftenaufsätze
CAT-ACT—A new highly versatile x-ray spectroscopy beamline for catalysis and radionuclide science at the KIT synchrotron light facility ANKA
Zimina, A.; Dardenne, K.; Denecke, M. A.; Doronkin, D. E.; Huttel, E.; Lichtenberg, H.; Mangold, S.; Pruessmann, T.; Rothe, J.; Spangenberg, T.; Steininger, R.; Vitova, T.; Geckeis, H.; Grunwaldt, J.-D.
2017. Review of scientific instruments, 88 (11), Art. Nr.: 113113. doi:10.1063/1.4999928
Pu Coexists in Three Oxidation States in a Borosilicate Glass: Implications for Pu Solubility
Bahl, S.; Peuget, S.; Pidchenko, I.; Pruessmann, T.; Rothe, J.; Dardenne, K.; Delrieu, J.; Fellhauer, D.; Jégou, C.; Geckeis, H.; Vitova, T.
2017. Inorganic chemistry, 56 (22), 13982–13990. doi:10.1021/acs.inorgchem.7b02118
Evaluating the electronic structure of formal LnII ions in LnII(C5H4SiMe3)31- using XANES spectroscopy and DFT calculations
Fieser, M. E.; Ferrier, M. G.; Su, J.; Batista, E.; Cary, S. K.; Engle, J. W.; Evans, W. J.; Lezama Pacheco, J. S.; Kozimor, S. A.; Olson, A. C.; Ryan, A. J.; Stein, B. W.; Wagner, G. L.; Woen, D. H.; Vitova, T.; Yang, P.
2017. Chemical science, 8 (9), 6076–6091. doi:10.1039/c7sc00825b
The role of the 5f valence orbitals of early actinides in chemical bonding
Vitova, T.; Pidchenko, I.; Fellhauer, D.; Bagus, P. S.; Joly, Y.; Pruessmann, T.; Bahl, S.; Gonzalez-Robles, E.; Rothe, J.; Altmaier, M.; Denecke, M. A.; Geckeis, H.
2017. Nature Communications, 8, 16053. doi:10.1038/ncomms16053
Tc interaction with crystalline rock from Äspö (Sweden): Effect of in-situ rock redox capacity
Huber, F. M.; Totskiy, Y.; Marsac, R.; Schild, D.; Pidchenko, I.; Vitova, T.; Kalmykov, S.; Geckeis, H.; Schäfer, T.
2017. Applied geochemistry, 80, 90–101. doi:10.1016/j.apgeochem.2017.01.026
Uranium Redox Transformations after U(VI) Coprecipitation with Magnetite Nanoparticles
Pidchenko, I.; Kvashnina, K. O.; Yokosawa, T.; Finck, N.; Bahl, S.; Schild, D.; Polly, R.; Bohnert, E.; Rossberg, A.; Göttlicher, J.; Dardenne, K.; Rothe, J.; Schäfer, T.; Geckeis, H.; Vitova, T.
2017. Environmental science & technology, 51 (4), 2217–2225. doi:10.1021/acs.est.6b04035
Buchaufsätze
Computational chemistry
Polly, R.; Trumm, M.; Schimmelpfennig, B.; Tasi, A.; Gaona, X.; Pidchenko, I.; Vitova, T.; Adam, C.; Maiwald, M.; Panak, P. J.; Skerencak-Frech, A.; Geist, A.
2017. Annual Report 2016 - Institute for Nuclear Waste Disposal. Ed.: H. Geckeis, 71–74, KIT Scientific Publishing. doi:10.5445/IR/1000079683
R&D projects conducted at the INE-Beamline for actinide research and the new CAT-ACT beamline at ANKA
Bahl, S.; Bauer, A.; Bohnert, E.; Dardenne, K.; González-Robles, E.; Herm, M.; Krepper, V.; Metz, V.; Pidchenko, I.; Rothe, J.; Vespa, M.; Vitova, T.
2017. Annual Report 2016 - Institute for Nuclear Waste Disposal. Ed.: H. Geckeis, 53–58, KIT Scientific Publishing. doi:10.5445/IR/1000078330
2016
Zeitschriftenaufsätze
Towards Printed Organic Light-Emitting Devices: A Solution-Stable, Highly Soluble Cu-NHetPHOS
Wallesch, M.; Verma, A.; Fléchon, C.; Flügge, H.; Zink, D. M.; Seifermann, S. M.; Navarro, J. M.; Vitova, T.; Göttlicher, J.; Steininger, R.; Weinhardt, L.; Zimmer, M.; Gerhards, M.; Heske, C.; Bräse, S.; Baumann, T.; Volz, D.
2016. Chemistry - a European journal, 22 (46), 16400–16405. doi:10.1002/chem.201603847
The CAT-ACT Beamline at ANKA : A new high energy X-ray spectroscopy facility for CATalysis and ACTinide research
Zimina, A.; Dardenne, K.; Denecke, M. A.; Grunwaldt, J. D.; Huttel, E.; Lichtenberg, H.; Mangold, S.; Pruessmann, T.; Rothe, J.; Steininger, R.; Vitova, T.
2016. Journal of physics / Conference Series, 712 (1), Art. Nr. 012019. doi:10.1088/1742-6596/712/1/012019
Probing Covalency in the UO3 Polymorphs by U M4 edge HR- XANES
Podkovyrina, Y.; Pidchenko, I.; Prüßmann, T.; Bahl, S.; Göttlicher, J.; Soldatov, A.; Vitova, T.
2016. Journal of physics / Conference Series, 712 (1), 012092. doi:10.1088/1742-6596/712/1/012092
Aqueous U(VI) interaction with magnetic nanoparticles in a mixed flow reactor system: HR-XANES study
Pidchenko, I.; Heberling, F.; Kvashnina, K. O.; Finck, N.; Schild, D.; Bohnert, E.; Schäfer, T.; Rothe, J.; Geckeis, H.; Vitova, T.
2016. Journal of physics / Conference Series, 712, 012086/1–4. doi:10.1088/1742-6596/712/1/012086
Further insights into the chemistry of the Bi–U–O system
Popa, K.; Prieur, D.; Manara, D.; Naji, M.; Vigier, J.-F.; Martin, P. M.; Blanco, O. D.; Scheinost, A. C.; Prüβmann T.; Vitova, T.; Raison, P. E.; Somers, J.; Konings, R. J. M.
2016. Dalton transactions, 45 (18), 7847–7855. doi:10.1039/C6DT00735J
2015
Zeitschriftenaufsätze
Polarization dependent high energy resolution X-ray absorption study of dicesium uranyl tetrachloride
Vitova, T.; Green, J. C.; Denning, R. G.; Löble, M.; Kvashnina, K.; Kas, J. J.; Jorissen, K.; Rehr, J. J.; Malcherek, T.; Denecke, M. A.
2015. Inorganic chemistry, 54, 174–182. doi:10.1021/ic5020016
A portable ultrahigh-vacuum system for advanced synchrotron radiation studies of thin films and nanostructures: EuSi₂ nano-islands
Ibrahimkutty, S.; Seiler, A.; Prüßmann, T.; Vitova, T.; Pradip, R.; Bauder, O.; Wochner, P.; Plech, A.; Baumbach, T.; Stankov, S.
2015. Journal of synchrotron radiation, 22 (1), 91–98. doi:10.1107/S1600577514019705
Buchaufsätze
R&D projects conducted at the INE-Beamline for radionuclide research at ANKA and at external SR sources
Altmaier, M.; Bahl, S.; Bohnert, E.; Dardenne, K.; Fellhauer, D.; Gensch, A.; González-Robles, E.; Kienzler, B.; Krepper, V.; Metz, V.; Pidchenko, I.; Prüßmann, T.; Rothe, J.; Vespa, M.; Vitova, T.
2015. Annual Report 2014 / Institute for Nuclear Waste Disposal. Hrsg.: H. Geckeis, 61–65, KIT Scientific Publishing
2014
Zeitschriftenaufsätze
Growth and structure characterization of EuSi₂ films and nanoislands on vicinal Si(001) surface
Seiler, A.; Bauder, O.; Ibrahimkutty, S.; Pradip, R.; Prüßmann, T.; Vitova, T.; Fiederle, M.; Baumbach, T.; Stankov, S.
2014. Journal of crystal growth, 407, 74–77. doi:10.1016/j.jcrysgro.2014.09.005
X-ray absorption spectroscopy of Ru-doped relaxor ferroelectrics with a perovskite-type structure
Vitova, T.; Mangold, S.; Paulmann, C.; Gospodinov, M.; Marinova, V.; Mihailova, B.
2014. Physical review / B, 89, 144112/1–14. doi:10.1103/PhysRevB.89.144112
Recent advances in the study of the UO₂-PuO₂ phase diagram at high temperatures
Böhler, R.; Welland, M. J.; Prieur, D.; Cakir, P.; Vitova, T.; Pruessmann, T.; Pidchenko, I.; Hennig, C.; Gueneau, C.; Konings, R. J. M.; Manara, D.
2014. Journal of nuclear materials, 448, 330–339. doi:10.1016/j.jnucmat.2014.02.029
An EXAFS and HR-XANES study of the uranyl peroxides [UO₂(η²-O₂)(H₂O)₂].nH₂O (n = 0, 2) and uranyl (oxy)hydroxide [(UO₂)₄O(OH)₆].6H₂O
Walshe, A.; Prüßmann, T.; Vitova, T.; Baker, R. J.
2014. Dalton transactions, 43, 4400–4407. doi:10.1039/C3DT52437J
Structure of UC₂ and U₂C₃:XRD, ¹³C NMR and EXAFS study
Carvajal Nunez, U.; Eloirdi, R.; Prieur, D.; Martel, L.; Lopez Honorato, E.; Farnan, I.; Vitova, T.; Somers, J.
2014. Journal of alloys and compounds, 589, 234–239. doi:10.1016/j.jallcom.2013.11.202
Labile or stable: Can homoleptic and heteroleptic pyrphos-copper complexes be processed from solution?
Volz, D.; Wallesch, M.; Grage, S. L.; Göttlicher, J.; Steininger, R.; Batchelor, D.; Vitova, T.; Ulrich, A. S.; Heske, C.; Weinhardt, L.; Baumann, T.; Bräse, S.
2014. Inorganic chemistry frontiers, 53, 7837–7847. doi:10.1021/ic500135m
Ultra-small plutonium oxide nanocrystals: An innovative material in plutonium science
Hudry, D.; Apostolidis, C.; Walter, O.; Janen, A.; Manara, D.; Griveau, J. C.; Colineau, E.; Vitova, T.; Prüßmann, T.; Wang, D.; Kübel, C.; Meyer, D.
2014. Chemistry - a European journal, 20, 10431–10438. doi:10.1002/chem.201402008
Buchaufsätze
Pu L3 edge high energy-resolution X-ray absorption near edge structure investigations of actinide partitioning complexes
Prüßmann, T.; Pidchenko, I.; Banik, N. L.; Dardenne, K.; Rothe, J.; Vitova, T.
2014. ANKA User Reports 2012/2013, 143–144, Karlsruher Institut für Technologie (KIT)
Investigation of Ca, Ba and Cs molybdates in a Mo bearing borosilicate glass
Bahl, S.; Kutzer, A.; Roth, G.; Geckeis; Vitova, T.
2014. ANKA User Reports 2012/2013, 137–138, Karlsruher Institut für Technologie (KIT)
Plutonium oxidation states speciation in perchloric acid by high-energy resolution XANES technique
Pidchenko, I.; Fellhauer, D.; Prüßmann, T.; Dardenne, K.; Rothe, J.; Vitova, T.
2014. ANKA User Reports 2012/2013, 132–133, Karlsruher Institut für Technologie (KIT)
Mü-XAFS/XRF/XRD investigation of U(VI) phases in cement alteration products
Bube, C.; Dardenne, K.; Denecke, M. A.; Kienzler, B.; Metz, V.; Prüßmann, T.; Rothe, J.; Schild, D.; Soballa, E.; Vitova, T.
2014. ANKA User Reports 2012/2013, 30–31, Karlsruher Institut für Technologie (KIT)
Identifying the Role of Covalency in Transuranic Extractants
Olson, A. C.; Kozimor, S. A.; Vitova, T.; Loeble, M. W.
2014. ANKA User Reports 2012/2013, 18–19, Karlsruher Institut für Technologie (KIT)
2013
Zeitschriftenaufsätze
XANES characterization of UO₂/mo(Pd) thin films as models for ε-particles in spent nuclear fuel
Denecke, M. A.; Petersmann, T.; Marsac, R.; Dardenne, K.; Vitova, T.; Prüßmann, T.; Borchert, M.; Bösenberg, U.; Falkenberg, G.; Wellenreuther, G.
2013. Journal of physics / Conference Series, 430, 012113/1–4. doi:10.1088/1742-6596/430/1/012113
Comparative investigation of N donor ligand-lanthanide complexes from the metal and ligand point of view
Prüßmann, T.; Denecke, M. A.; Geist, A.; Rothe, J.; Lindqvist-Reis, P.; Löble, M.; Breher, F.; Batchelor, D. R.; Apostolidis, C.; Walter, O.; Caliebe, W.; Kvashnina, K.; Jorissen, K.; Kas, J. J.; Rehr, J. J.; Vitova, T.
2013. Journal of physics / Conference Series, 430, 012115/1–5. doi:10.1088/1742-6596/430/1/012115
Local and electronic structure of americium-bearing PuO₂
Prieur, D.; Carvajal-Nunez, U.; Vitova, T.; Somers, J.
2013. European Journal of Inorganic Chemistry, (9), 1518–1524. doi:10.1002/ejic.201201294
Actinide and lanthanide speciation with high-energy resolution X-ray techniques
Vitova, T.; Denecke, M. A.; Göttlicher, J.; Jorissen, K.; Kas, J. J.; Kvashnina, K.; Prüßmann, T.; Rehr, J. J.; Rothe, J.
2013. Journal of physics / Conference Series, 430, 012117/1–4. doi:10.1088/1742-6596/430/1/012117
Coupling XRD, EXAFS, and ¹³C NMR to study the effect of the carbon stoichiometry on the local structure of UC¹⁺⁻̽
Carvajal Nunez, U.; Martel, L.; Prieur, D.; Lopez Honorato, E.; Eloirdi, R.; farnan, I.; Vitova, T.; Somers, J.
2013. Inorganic Chemistry, 52, 11669–11676. doi:10.1021/ic402144g
Exploring the solution behavior of f-element coordination compounds : a case study on some trivalent rare earth and plutonium complexes
Löble, M. W.; Ona-Burgos, P.; Fernández, I.; Apostolidis, C.; Morgenstern, A.; Walter, O.; Bruchertseifer, F.; Kaden, P.; Vitova, T.; Rothe, J.; Dardenne, K.; Banik, N. L.; Geist, A.; Denecke, M. A.; Breher, F.
2013. Chemical science, 4 (9), 3717–3724. doi:10.1039/C3SC50708D
Sulfur K X-ray absorption near edge structure spectroscopy on the photochrome sodalite variety hackmanite
Göttlicher, J.; Kotelnikov, A.; Suk, N.; Kovalski, A.; Vitova, T.; Steininger, R.
2013. Zeitschrift für Kristallographie, 228, 157–171. doi:10.1524/zkri.2013.1587
Characterization of U(VI)-phases in corroded cement products by micro(μ)-spectroscopic methods
Rothe, J.; Brendebach, B.; Bube, C.; Dardenne, K.; Denecke, M. A.; Kienzler, B.; Metz, V.; Prüßmann, T.; Rickers-Appel, K.; Schild, D.; Soballe, E.; Vitova, T.
2013. Journal of Physics: Conference Series, 430, 012114/1–5. doi:10.1088/1742-6596/430/1/012114
Synthesis and characterization of thorium, uranium and cerium oxide nanoparticles
Batuk, O. N.; Szabo, D. V.; Denecke, M. A.; Vitova, T.; Kalmykov, S. N.
2013. Radiochimica acta, 101 (4), 233–239. doi:10.1524/ract.2012.2014
Buchaufsätze
R&D projects conducted at the INE-Beamline for Actinide Research at ANKA and at external SR sources
Bube, C.; Dardenne, K.; Denecke, M. A.; Fröhlich, D. R.; Kienzler, B.; Metz, V.; Panak, P. J.; Prüßmann, T.; Rothe, J.; Schild, D.; Skerencak, A.; Soballa, E.; Vitova, T.
2013. Annual Report 2012 : Institute for Nuclear Waste Disposal. Ed.: H. Geckeis, 77–83, KIT Scientific Publishing
Structural investigations on the impact of increasing MoO3 loadings in borosilicate glasses for the immobilization of Mo-rich nuclear wastes
Kutzer, A.; Vitova, T.; Kvashnina, K.; Prüßmann, T.; Rothe, J.; Adam, C.; Kaden, P.; Denecke, M. A.; Weisenburger, S.; Roth, G.; Geckeis, H.
2013. Annual Report 2012 : Institute for Nuclear Waste Disposal. Ed.: H. Geckeis, 73–75, KIT Scientific Publishing
2012
Zeitschriftenaufsätze
Charge Distribution and Local Structure of Americium-Bearing Thorium Oxide Solid Solutions
Carvajal-Nunez, U.; Prieur, D.; Vitova, T.; Somers, J.
2012. Inorganic Chemistry, 51 (21), 11762–11768. doi:10.1021/ic301709d
U(VI) removal kinetics in presence of synthetic magnetite nanoparticles
Huber, F.; Schild, D.; Vitova, T.; Rothe, J.; Kirsch, R.; Schäfer, T.
2012. Geochimica et Cosmochimica Acta, 96, 154–173. doi:10.1016/j.gca.2012.07.019
Fabrication and characterization of (U, Am)O₂₋ₓ transmutation targets
Vespa, M.; Rini, M.; Spino, J.; Vitova, T.; Somers, J.
2012. Journal of Nuclear Materials, 421, 80–88. doi:10.1016/j.jnucmat.2011.11.055
The INE-beamline for actinide science at ANKA
Rothe, J.; Butorin, S.; Dardenne, K.; Denecke, M. A.; Kienzler, B.; Löble, M.; Metz, V.; Seibert, A.; Steppert, M.; Vitova, T.; Walther, C.; Geckeis, H.
2012. Review of Scientific Instruments, 83, 043105/1–13. doi:10.1063/1.3700813
Highly resolved synchrotron-based investigations related to nuclear waste disposal
Denecke, M. A.; Borchert, M.; Denning, R. G.; De Nolf, W.; Falkenberg, G.; Hon̈ig S.; Klinkenberg, M.; Kvashnina, K.; Neumeier, S.; Patommel, J.; Petersmann, T.; Pruessmann, T.; Ritter, S.; Schroer, C. G.; Stephan, S.; Villanova, J.; Vitova, T.; Wellenreuther, G.
2012. MRS online proceedings library, 1444 (1), 269–280. doi:10.1557/opl.2012.1159
Proceedingsbeiträge
High-resolution X-ray absorption spectroscopy of U in cemented waste form
Vitova, T.; Denecke, M. A.; Finck, N.; Göttlicher, J.; Kienzler, B.; Rothe, J.
2012. 2nd Internat.Workshop on Actinide Brine Chemistry in a Salt-Based Repository (ABC-SALT (II)), Karlsruhe, November 7-8, 2011, 107–108, KIT Scientific Publishing
U removal kinetics in the presence of magnetite and maghemite nanoparticles
Huber, F. M.; Schild, D.; Vitova, T.; Rothe, J.; Kirsch, R.; Schäfer, T.
2012. 4th Annual Workshop Proceedings of the Collaborative Project "Redox Phenomena Controlling Systems" (7th EC FP CP RECOSY). Ed.: M. Altmaier, 383–397, KIT Scientific Publishing
Study of U oxidation states in natural geological material
Pidchenko, I.; Salminen-Paatero, S.; Vitova, T.; Suksi, J.
2012. 4th Annual Workshop Proceedings of the Collaborative Project "Redox Phenomena Controlling Systems" (7th EC FP CP RECOSY). Ed.: M. Altmaier, 223–230, KIT Scientific Publishing
Buchaufsätze
High-resolution X-ray absorption spectroscopy study of plutonium dioxide in contact with water
Vitova, T.; Butorin, S. M.; Seibert, A.; Rothe, J.; Dardenne, K.; Vegelius, J.; Caciuffo, R.; Denecke, M. A.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 394–395
New insights in electronic properties of f-element coordination compounds
Löble, M.; Vitova, T.; Brendebach, B.; Rothe, J.; Dardenne, K.; Denecke, M. A.; Breher, F.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 337–338
P- and S- k-edge XANES investigation of U(VI) complexes with several organic model compounds
Li, B.; Dardenne, K.; Vitova, T.; Rothe, J.; Foerstendorf, H.; Raff, J.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 379
Mo K-edge XAS study of Mo-rich model nuclear waste glass
Kutzer, A.; Vitova, T.; Denecke, M. A.; Roth, G.; Geckeis, H.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 336
Interaction of uranium(VI) with synthetic magnetite nanoparticles
Vitova, T.; Huber, F.; Rothe, J.; Dardenne, K.; Schäfer, T.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 329–330
Probing Eu(III) adsorbed to Fe-containing clay mineral: an application for high-resolution X-ray emission spectroscopy
Schepperle, J.; Finck, N.; Vitova, T.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 327–328
The latest development and optimization of the high-resolution X-ray emission spectrometer at the INE-beamline
Vitova, T.; Dardenne, K.; Denecke, M. A.; Ernst, H.; Rothe, J.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 326
In-situ RIXS studies of the possibilities of the existence of Pu(V) in plutonium dioxide
Butorin, S. M.; Vitova, T.; Vegelius, J.; Seibert, A.; Caciuffo, R.; Denecke, M. A.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 295–296
P and S K edge XANES investigations of lanthanide complexes consisting of a κ⁶N-donor ligand with podand topology
Löble, M.; Vitova, T.; Brendebach, B.; Rothe, J.; Dardenne, K.; Denecke, M. A.; Breher, F.
2012. ANKA - Annual Report 2010/2011 Karlsruhe : Karlsruhe Institute of Technology, 2012 Also publ.online, 307–309

Collaborations

Polly Arnold

Lawrence Berkeley National Laboratory, USA

https://chemistry.berkeley.edu/faculty/chem/polly-arnold

 

Stosh Kozimor

Ping Yang

Los Alamos National Laboratory, USA https://www.lanl.gov/

Robert Baker

Trinity College Dublin, Ireland

https://sites.google.com/site/bakeresearchgroup/home

 

Paul Bagus University of North Texas, USA https://chemistry.unt.edu/people-node/paul-bagus

Marinella Mazzanti

Rizlan Bernier-Latmani

École Polytechnique Fédérale de Lausanne, Switzerland

https://www.epfl.ch/labs/gcc/

https://www.epfl.ch/labs/eml/

Katherine Morris

Samuel Shaw

University of Manchester, UK https://www.research.manchester.ac.uk/portal/en/facultiesandschools/department-of-earth-and-environmental-sciences(d84b0f4f-1d8f-4537-8be0-3b7d8b904579).html

Kristina Kvashnina

 

European Synchrotron Radiation Facility, France

https://www.esrf.eu/home/Members/content/staff-web-pages/kvashnin.html

 

Philippe Martin

 

CEA, DEN, DEC, CEN Cadarache, France

https://www.pubfacts.com/author/Philippe+M+Martin

 

Thiery Wiss

Olaf Walter

Karin Popa

Antonio Bulgheroni

Dario Manara

Roberto Caciuffo

Alice Seibert

Joint Research Center-Karlsruhe, Germany

https://ec.europa.eu/jrc/en/about/jrc-site/karlsruhe

 

 

 

 

 

 

Svetoslav Stankov

Jörg Göttlicher

Stefan Schuppler

Peter Nagel

 

KIT Light source,  Synchrotron Radiation Facility, Germany

https://nanodynamics-group.com/stankov.html

 

 
Sergei M. Butorin Uppsala Universitet, Sweden https://www.physics.uu.se/forskning/molcond/ Uppsala universitet

 

 

Maurits Haverkort

 

Heidelberg University, Germany

 

https://www.thphys.uni-heidelberg.de/~haverkort/

Contact us!

If you are looking for a bachelor, master or PhD project with exciting topic including application of novel synchrotron based X-ray spectroscopy methods contact us. You will have the opportunity to reveal structural properties of actinide and lanthanide systems important for example for molecular scale understanding of processes in a nuclear waste repository. You will work in a young, motivated and enthusiastic team and will perform experiments at the KIT Light Source and other national and international synchrotron radiation facilities.

Email: Tonya.Vitova∂kit.edu
Telephone: +49 721 608 24024
Address: Karlsruhe Institute of Technology
Institute for Nuclear Waste Disposal
Hermann von Helmholtz Platz 1
76344 Eggenstein-Leopoldshafen, Germany
letzte Änderung: 07.10.2022
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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