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The High Resolution X-ray Spectroscopy Group

 

We systematically investigate the electronic and coordination structures of actinide (An) and chemical homologue lanthanide (Ln) systems with novel synchrotron-based high energy resolution X-ray emission/absorption/inelastic scattering techniques. The experimental results are supported by theoretical calculations and simulations with quantum chemical codes. These investigations improve our understanding of An/Ln reactivity in repository systems and waste matrices on a molecular scale and thereby support the reliability of safety case evaluation of the repository long term safety. The elucidation of electronic and coordination structures provide basic insight into structure-reactivity relationships of actinide elements, which is a present scientific frontier. The group was initiated in July, 2011 - Helmholtz Young Investigators Group grant (VH-NG-734) awarded by the Helmholtz Association of German Research Centers (HGF) and the Karlsruhe Institute of Technology (KIT), Faculty of Chemistry and Biosciences, Institute for Nuclear Waste Disposal (INE).

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

Thomas Neill, KIT

thomas.neill∂kit.edu

+49 721 608-25774

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

Postdoc Project:

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

PhD Project:

“Investigations of Np, Tc, and Se structural properties applying in-situ high-energy resolution X-ray emission/absorption spectroscopy”

 

PhD Project:

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

PhD Project:

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

Former members

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”

Recent Highlights

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

2017: Applying the U M4 HR-XANES method, we demonstrated that U(V) can be stable in magnetite even in air

2017 - 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

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

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

The Instrumentation

High energy resolution X-ray emission spectrometer

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, https://wsm10.scc.kit.edu/cms/RedDotTemp/E8D1E516BFA249CBA172FDDB96EB2148/7A9300D552E142D8A44DBD1A157F6C93/bla2.pngcrystals, 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 Figures depict Pu M5 edge HR-XANES, conventional XANES spectra (below) and a 3d4f RIXS map (2 hours measurement, left) of 50 mM Pu(VI) in aqueous solution prepared by David Fellhauer (INE) and measured with our MAC-Spectrometer at the INE-Beamline, KARA. We would like to specifically thank Alexander Gensch (INE), Volker Krepper, Tim Prüßmann (HYIG, INE), and Jörg Rothe (INE) for the very successful design and manufacture of the He environment.

 

 

 

 

 

 

 

 

https://wsm10.scc.kit.edu/cms/RedDotTemp/E8D1E516BFA249CBA172FDDB96EB2148/7A9300D552E142D8A44DBD1A157F6C93/bla2.png

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Publications


2020
Zeitschriftenaufsätze
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, La Grange Park (IL)
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, Karlsruhe. 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, Karlsruhe. 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.; PrüβmannT.; 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, Karlsruhe
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
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, KIT, Karlsruhe
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, KIT, Karlsruhe
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, KIT, Karlsruhe
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, KIT, Karlsruhe
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, KIT, Karlsruhe
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
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, Karlsruhe
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, Karlsruhe
2012
Zeitschriftenaufsätze
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
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, Karlsruhe
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, Karlsruhe
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, Karlsruhe
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

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

 

Philippe Martin

 

CEA, DEN, DEC, CEN Cadarache, France

http://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

 

KARA Synchrotron Radiation Facility, Germany

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

 

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

 

 

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 KARA, KIT 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

The Group life