Kvashnina Kristina O, Romanchuk Anna Yu, Pidchenko Ivan, Amidani Lucia, Gerber Evgeny, Trigub Alexander, Rossberg Andre, Weiss Stephan, Popa Karin, Walter Olaf, Caciuffo Roberto, Scheinost Andreas C, Butorin Sergei M, Kalmykov Stepan N
Institute of Resource Ecology, Helmholtz Zentrum Dresden-Rossendorf (HZDR), PO Box 510119, 01314, Dresden, Germany.
The Rossendorf Beamline at ESRF, The European Synchrotron, CS40220, 38043, Grenoble Cedex 9, France.
Angew Chem Int Ed Engl. 2019 Dec 2;58(49):17558-17562. doi: 10.1002/anie.201911637. Epub 2019 Nov 6.
Here we provide evidence that the formation of PuO nanoparticles from oxidized Pu under alkaline conditions proceeds through the formation of an intermediate Pu solid phase, similar to NH PuO CO , which is stable over a period of several months. For the first time, state-of-the-art experiments at Pu M and at L absorption edges combined with theoretical calculations unambiguously allow to determine the oxidation state and the local structure of this intermediate phase.
在此，我们提供证据表明，在碱性条件下由氧化钚形成钚氧化物纳米颗粒的过程中会形成一种中间钚固相，类似于NH PuO CO ，这种中间相在几个月的时间内是稳定的。首次将钚M和L吸收边的前沿实验与理论计算相结合，明确地确定了该中间相的氧化态和局部结构。
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