Actinide, lanthanide, and fission product speciation and electrochemistry in ionic melts / Bhatt A. I.,Kinoshita H.,Koster A. L.,May I.,Sharrad C.,Steele H. M.,Volkovich V. A.,Fox O. D.,Jones C. J.,Lewin B. G.,Charnock J. M.,Hennig C. // . - 2006. - V. 933, l. . - P. 219-231.

ISSN/EISSN:

0097-6156 / нет данных

Type:

Review

Abstract:

We report the results of recent research that we have undertaken to increase our understanding of key actinide and fission product speciation in a range of ionic melts. These results will be used to develop novel electrochemical methods of separation of uranium and plutonium from irradiated nuclear fuel. Our studies in high temperature alkali metal melts (including LiCl and the eutectics LiCl-KCl and CsCI-NaCl) have focussed on in-situ speciation of U, Tc and Ru using both Electronic Absorption Spectroscopy (EAS) and X-ray Absorption Spectroscopy (XAS). The XAS studies have included Extended X-Ray Absorption Fine Structure (EXAFS) and X-Ray Absorption Near Edge Structure (XANES) measurements. We report what could be unusual uranium speciation in high temperature melts and evaluate the likelihood of Ru or Tc volatilisation during plant operation. Our studies in lower temperature melts, commonly known as ionic liquids, have focussed on salts containing tertiary alkyl group 15 cations and the bis(trifluoromethylsulphonyl)imide anion, melts which we know to have exceptionally wide electrochemical windows. We report Ln, Th, U and Np speciation (XAS, EAS and vibrational spectroscopy) and electrochemistry in these melts.

Author keywords:

LIQUIDS; SPECTROSCOPY; CHLORIDE; CATALYSIS; COMPLEXES; CHEMISTRY; BEHAVIOR

DOI:

нет данных

Web of Science ID:

ISI:000239743000014

Соавторы в МНС:

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Другие поля

Поле	Значение
Editor	Lumetta, GJ and Nash, KL and Clark, SB and Friese, JI
Booktitle	SEPARATIONS FOR THE NUCLEAR FUEL CYCLE IN THE 21ST CENTURY
Series	ACS Symposium Series
Note	Symposium on Separations for the Nuclear Fuel Cycle held at the 227th ACS National Meeting, Anaheim, CA, MAR 30-APR 01, 2004
Organization	Amer Chem Soc, Div Ind \& Engn Chem; ACS, Div Nucl Chem \& Technol
Publisher	AMER CHEMICAL SOC
Address	1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
Language	English
ISBN	0-8412-3931-2
Keywords-Plus	LIQUIDS; SPECTROSCOPY; CHLORIDE; CATALYSIS; COMPLEXES; CHEMISTRY; BEHAVIOR
Research-Areas	Chemistry; Nuclear Science \& Technology
Web-of-Science-Categories	Chemistry, Multidisciplinary; Chemistry, Inorganic \& Nuclear; Nuclear Science \& Technology
Author-Email	Iain.May@man.ac.uk
ResearcherID-Numbers	The Rossendorf Beamline at ESRF, ROBL/A-2586-2011 Volkovich, Vladimir/K-8339-2012 Sharrad, Clint/E-2499-2017
ORCID-Numbers	Volkovich, Vladimir/0000-0003-4438-1194 Sharrad, Clint/0000-0001-7372-8666
Number-of-Cited-References	39
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	24
Journal-ISO	ACS Symp. Ser.
Doc-Delivery-Number	BEW09