期刊
VACUUM
卷 114, 期 -, 页码 162-165出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2014.10.013
关键词
Potassium uranyl carbonate; Scanning electron microscopy (SEM); X-ray diffraction (XRD); X-ray photoelectron spectroscopy (XPS)
An ambient pressure synthesis of potassium tris(carbonato)dioxouranium(VI), K4UO2(CO3)(3), is reported in which a hydrolyzed uranyl salt (the first report of reacting a non-stoichiometric uranium mixture starting material to form the title compound) is reacted with potassium carbonate at ambient pressure to produce pure, high quality, large crystals of the title compound. The compound has been characterized using X-ray photoelectron spectroscopy, along with X-ray single-crystal diffraction confirmatory data that have been reported previously. Binding energies and line widths, along with the concomitant associated satellite structure of the photoelectron peaks, are reported and compared to those of similar compounds. The uranium 4f(7/2), (5/2) X-ray photoelectron lines show distinct, unique satellite features whose mechanisms of formation are discussed. (C) 2014 Elsevier Ltd. All rights reserved.
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