XPS study of influence of exposure to air on thermal stability and kinetics of hydrogen decomposition of MgH₂ films obtained by direct hydrogenation from gaseous phase of metallic Mg

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• 作者：V.D. Dobrovolsky ; ^{dobersh@ipms.kiev.ua} ; O.Y. Khyzhun ; A.K. Sinelnichenko ; O.G. Ershova ; Y.M. Solonin
• 关键词：Alloys ; X-ray powder diffraction ; Thermodesorption ; X-ray photoelectron spectroscopy
• 刊名：Journal of Electron Spectroscopy and Related Phenomena
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：215
• 期：Complete
• 页码：28-35
• 全文大小：1953 K
• 卷排序：215

文摘

Air influence on thermal stability of MgH2 have been studied by XPS. XPS spectra of MgH2 films obtained at different hydrogen pressures have been studied. Changes in the chemical state of MgH2 films depending on time of exposure to air are analyzed. Correlation exists between chemical surface condition of MgH2 films and their thermal stableness. Process of hydrogen desorption from MgH2 films is studied using TDS for model samples.