2
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Hinz K, Fellhauer D, Gaona X, Vespa M, Dardenne K, Schild D, Yokosawa T, Silver MA, Reed DT, Albrecht-Schmitt TE, Altmaier M, Geckeis H. Interaction of Np( v) with borate in alkaline, dilute-to-concentrated, NaCl and MgCl 2 solutions. Dalton Trans 2020; 49:1570-1581. [DOI: 10.1039/c9dt04430b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of sparingly soluble ternary Na/Mg–Np(v)–borate(s) solid phases in alkaline, dilute-to-concentrated, NaCl and MgCl2 solutions is confirmed by a multimethod experimental approach.
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Affiliation(s)
- K. Hinz
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - D. Fellhauer
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - X. Gaona
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - M. Vespa
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - K. Dardenne
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - D. Schild
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - T. Yokosawa
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - M. A. Silver
- Department of Chemistry and Biochemistry
- Florida State University
- USA
| | | | | | - M. Altmaier
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
| | - H. Geckeis
- Institute for Nuclear Waste Disposal
- Karlsruhe Institute of Technology
- Germany
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3
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Fifteen Years of Radionuclide Research at the KIT Synchrotron Source in the Context of the Nuclear Waste Disposal Safety Case. GEOSCIENCES 2019. [DOI: 10.3390/geosciences9020091] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
For more than 120 years, systematic studies of X-ray interaction with matter have been the basis for our understanding of materials—both of natural or man-made origin—and their structure-function relationships. Beginning with simple radiographic imaging at the end of the 19th century, X-ray based analytical tools such as X-ray diffraction, X-ray fluorescence and photoemission or X-ray absorption techniques are indispensable in almost any field of chemical and material sciences—including basic and applied actinide and radionuclide studies. The advent of dedicated synchrotron radiation (SR) sources in the second half of the last century has revolutionized the analytical power of X-ray probes, while—with increasing number of SR facilities—beamline instrumentation followed a trend towards increasing specialization and adaption to a major research topic. The INE-Beamline and ACT station at the KIT synchrotron source belong to the exclusive club of a few synchrotron beamline facilities—mostly located in Europe—dedicated to the investigation of highly radioactive materials. Since commissioning of the INE-Beamline in 2005, capabilities for synchrotron-based radionuclide and actinide sciences at KIT have been continuously expanded, driven by in-house research programs and external user needs.
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4
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Bots P, Shaw S, Law GTW, Marshall TA, Mosselmans JFW, Morris K. Controls on the Fate and Speciation of Np(V) During Iron (Oxyhydr)oxide Crystallization. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:3382-90. [PMID: 26913955 DOI: 10.1021/acs.est.5b05571] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The speciation and fate of neptunium as Np(V)O2(+) during the crystallization of ferrihydrite to hematite and goethite was explored in a range of systems. Adsorption of NpO2(+) to iron(III) (oxyhydr)oxide phases was reversible and, for ferrihydrite, occurred through the formation of mononuclear bidentate surface complexes. By contrast, chemical extractions and X-ray absorption spectroscopy (XAS) analyses showed the incorporation of Np(V) into the structure of hematite during its crystallization from ferrihydrite (pH 10.5). This occurred through direct replacement of octahedrally coordinated Fe(III) by Np(V) in neptunate-like coordination. Subsequent analyses on mixed goethite and hematite crystallization products (pH 9.5 and 11) showed that Np(V) was incorporated during crystallization. Conversely, there was limited evidence for Np(V) incorporation during goethite crystallization at the extreme pH of 13.3. This is likely due to the formation of a Np(V) hydroxide precipitate preventing incorporation into the goethite particles. Overall these data highlight the complex behavior of Np(V) during the crystallization of iron(III) (oxyhydr)oxides, and demonstrate clear evidence for neptunium incorporation into environmentally important mineral phases. This extends our knowledge of the range of geochemical conditions under which there is potential for long-term immobilization of radiotoxic Np in natural and engineered environments.
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Affiliation(s)
- Pieter Bots
- Research Centre for Radwaste Disposal and Williamson Research Centre for Molecular Environmental Science, School of Earth, Atmospheric and Environmental Sciences, The University of Manchester , Manchester, M13 9PL, United Kingdom
| | - Samuel Shaw
- Research Centre for Radwaste Disposal and Williamson Research Centre for Molecular Environmental Science, School of Earth, Atmospheric and Environmental Sciences, The University of Manchester , Manchester, M13 9PL, United Kingdom
| | - Gareth T W Law
- Centre for Radiochemistry Research and Research Centre for Radwaste Disposal, School of Chemistry, The University of Manchester , Manchester, M13 9PL, United Kingdom
| | - Timothy A Marshall
- Research Centre for Radwaste Disposal and Williamson Research Centre for Molecular Environmental Science, School of Earth, Atmospheric and Environmental Sciences, The University of Manchester , Manchester, M13 9PL, United Kingdom
| | - J Frederick W Mosselmans
- Diamond Light Source, Ltd. , Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - Katherine Morris
- Research Centre for Radwaste Disposal and Williamson Research Centre for Molecular Environmental Science, School of Earth, Atmospheric and Environmental Sciences, The University of Manchester , Manchester, M13 9PL, United Kingdom
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5
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Shi WQ, Yuan LY, Wang CZ, Wang L, Mei L, Xiao CL, Zhang L, Li ZJ, Zhao YL, Chai ZF. Exploring actinide materials through synchrotron radiation techniques. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7807-7848. [PMID: 25169914 DOI: 10.1002/adma.201304323] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 04/24/2014] [Indexed: 06/03/2023]
Abstract
Synchrotron radiation (SR) based techniques have been utilized with increasing frequency in the past decade to explore the brilliant and challenging sciences of actinide-based materials. This trend is partially driven by the basic needs for multi-scale actinide speciation and bonding information and also the realistic needs for nuclear energy research. In this review, recent research progresses on actinide related materials by means of various SR techniques were selectively highlighted and summarized, with the emphasis on X-ray absorption spectroscopy, X-ray diffraction and scattering spectroscopy, which are powerful tools to characterize actinide materials. In addition, advanced SR techniques for exploring future advanced nuclear fuel cycles dealing with actinides are illustrated as well.
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Affiliation(s)
- Wei-Qun Shi
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Institute of High Enegy Physics, Chinese Academy of Sciences, Beijing, 100049, China
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6
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Canche-Tello J, Vargas MC, Hérnandez-Cobos J, Ortega-Blake I, Leclercq A, Solari PL, Den Auwer C, Mustre de Leon J. Interpretation of X-ray Absorption Spectra of As(III) in Solution Using Monte Carlo Simulations. J Phys Chem A 2014; 118:10967-73. [DOI: 10.1021/jp5061232] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jesus Canche-Tello
- Departamento
de Fisica Aplicada, Cinvestav-Merida, Carretera Antigua a Progreso km.
6, Merida, Yucatán 97310, Mexico
| | - M. Cristina Vargas
- Departamento
de Fisica Aplicada, Cinvestav-Merida, Carretera Antigua a Progreso km.
6, Merida, Yucatán 97310, Mexico
| | - Jorge Hérnandez-Cobos
- Instituto
de Ciencias Físicas, Universidad Nacional Autónoma de México, A.P. 48-3, Cuernavaca, Morelos 62251, México
| | - Iván Ortega-Blake
- Instituto
de Ciencias Físicas, Universidad Nacional Autónoma de México, A.P. 48-3, Cuernavaca, Morelos 62251, México
| | - Amelie Leclercq
- Université Nice Sophia Antipolis, Nice Chemistry Institute, UMR 7272, Parc Valrose, 06100 Nice, France
| | | | - Christophe Den Auwer
- Université Nice Sophia Antipolis, Nice Chemistry Institute, UMR 7272, Parc Valrose, 06100 Nice, France
| | - José Mustre de Leon
- Departamento
de Fisica Aplicada, Cinvestav-Merida, Carretera Antigua a Progreso km.
6, Merida, Yucatán 97310, Mexico
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8
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Infante I, Kovacs A, Macchia GL, Shahi ARM, Gibson JK, Gagliardi L. Ionization Energies for the Actinide Mono- and Dioxides Series, from Th to Cm: Theory versus Experiment. J Phys Chem A 2010; 114:6007-15. [DOI: 10.1021/jp1016328] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ivan Infante
- Kimika Fakultatea, Euskal Herriko Unibertsitatea and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi (Spain), Research Group for Materials Structure and Modeling of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland, Chemical Sciences Division, Lawrence Berkeley National Laboratory,
| | - Attila Kovacs
- Kimika Fakultatea, Euskal Herriko Unibertsitatea and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi (Spain), Research Group for Materials Structure and Modeling of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland, Chemical Sciences Division, Lawrence Berkeley National Laboratory,
| | - Giovanni La Macchia
- Kimika Fakultatea, Euskal Herriko Unibertsitatea and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi (Spain), Research Group for Materials Structure and Modeling of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland, Chemical Sciences Division, Lawrence Berkeley National Laboratory,
| | - Abdul Rehaman Moughal Shahi
- Kimika Fakultatea, Euskal Herriko Unibertsitatea and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi (Spain), Research Group for Materials Structure and Modeling of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland, Chemical Sciences Division, Lawrence Berkeley National Laboratory,
| | - John K. Gibson
- Kimika Fakultatea, Euskal Herriko Unibertsitatea and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi (Spain), Research Group for Materials Structure and Modeling of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland, Chemical Sciences Division, Lawrence Berkeley National Laboratory,
| | - Laura Gagliardi
- Kimika Fakultatea, Euskal Herriko Unibertsitatea and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi (Spain), Research Group for Materials Structure and Modeling of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland, Chemical Sciences Division, Lawrence Berkeley National Laboratory,
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