Structural investigations of PuIII phosphate by X-ray diffraction, MAS-NMR and XANES spectroscopy

被引：18

作者：

Popa, Mann ^{[1
]}

Raison, Philippe E. ^{[1
]}

Martel, Laura ^{[1
]}

Martin, Philippe M. ^{[2
]}

Prieur, Damien ^{[1
]}

Solari, Pier L. ^{[3
]}

Bouexiere, Daniel ^{[1
]}

Konings, Rudy J. M. ^{[1
]}

Somers, Joseph ^{[1
]}

机构：

[1] Commiss European Communities, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany

[2] CEA, DEN, DEC SESC, F-13108 St Paul Les Durance, France

[3] Synchrotron SOLEIL, F-91190 St Aubin, France

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2015年 / 230卷

关键词：

Crystal structure; Monazite; Oxidation state; Plutonium(III) phosphate; SOLID-STATE SYNTHESIS; TEMPERATURE HEAT-CAPACITY; BOND-VALENCE PARAMETERS; MONAZITE-TYPE COMPOUNDS; CRYSTAL-CHEMISTRY; MIXED OXIDES; PLUTONIUM; URANIUM; IMMOBILIZATION; NEPTUNIUM;

D O I：

10.1016/j.jssc.2015.07.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

PuPO4 was prepared by a solid state reaction method and its crystal structure at room temperature was solved by powder X-ray diffraction combined with Rietveld refinement. High resolution}CANES measurements confirm the +III valence state of plutonium, in agreement with valence bond derivation. The presence of the americium (as decay product of plutonium) in the +III oxidation state was determined based on XANES spectroscopy. High resolution solid state P-31 NMR agrees with the XANES results and the presence of a solid-solution. (C) 2015 Elsevier Inc.. Published by Elsevier Inc. All rights reserved.

引用

页码：169 / 174

页数：6

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