Topic
Chemical state
About: Chemical state is a research topic. Over the lifetime, 2378 publications have been published within this topic receiving 78183 citations.
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01 Jan 1994
1 citations
Journal Article•
TL;DR: In this article, ZnSe thin film was deposited on the substrates of single crystal silicon by vacuum evaporation and the as-deposited film interface and its chemical state were studied by X-ray photo-elctron spectroscopy.
Abstract: The investigations of ZnSe thin film as a buffer and window material in CIS solar cell deposited by vacuum evaporation was discribed in this paper.ZnSe thin film was deposited on the substrates of single crystal silicon by vacuum evaporation.The as-deposited film interface and its chemical state were studied by X-ray photo-elctron spectroscopy.The result shows that the chemical states of interface were very stable.The oxidation state of film does not change with the depth of Ar+-sputter denudation.XPS provide a new way to investigate the quality of thin film and its oxidation state.
1 citations
TL;DR: In this paper, the Nb hydride formation in 10-GPa supercritical water has been investigated by angle-dependent micro-beam hard X-ray photoemission spectroscopy.
1 citations
TL;DR: The structural changes of two representative samples of a group of V-Sb-oxide catalysts, a vanadium-rich and an antimony-rich specimen, are investigated by 121Sb Mossbauer spectroscopy after treatment under propene or hydrogen at 673 K as mentioned in this paper.
Abstract: The structural changes of two representative samples of a group of V-Sb-oxide catalysts, a vanadium-rich and an antimony-rich specimen, are investigated by 121Sb Mossbauer spectroscopy after treatment under propene or hydrogen at 673 K. The as-prepared catalysts contain both Sb(V) and Sb(III) as crystalline and microcrystalline α-Sb2O4 and VSbO4, as well as an additional amorphous V5+ oxide phase. The oxidation state of antimony does not change upon exposure to propene, whereas a partial reduction can be obtained by a more intense reduction under hydrogen. The Mossbauer results indicate that the antimony in VSbO4 can be reduced more easily than that in α-Sb2O4, which appears to be more stable. These results are discussed in view of the observed depletion of vanadium at the surface of the catalyst particles under reaction conditions.
1 citations
TL;DR: In this article, the use of conversion-electron-yield (CEY) detection in in-situ zeolite analysis was extended to the case of 0.1wt% Ni adsorbed on the material.
Abstract: The purpose of this paper is to extend the use of conversion-electron-yield (CEY) detection in in-situ zeolite analysis. The experimental results demonstrate that CEY detection for chemical state observation of 0.1wt% Ni adsorbed on zeolite is attainable.
1 citations