Characterizing the surface chemistry of oxides with X-ray photoelectron spectroscopy:Comparison of oxygen valence charge in octahedrally and tetrahedrally O coordinated metal ions and acid-base properties

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• 出版年：2010
• 作者：M.Ding；B.H.W.S.de Jong
• 单位1：Earth and Environmental Science Division,Los Alamos National Laboratory,Los Alamos
• 出生年：1963
• 职称：Technical Staff Member
• 语种：中文
• 作者关键词：X-ray photoelectron spectroacopy；oxides acid-base properties；coordinated metalions；oxygen valence charge
• 起始页：280
• 总页数：16
• 刊名：地球化学
• 是否内版：否
• 刊频：双月刊
• 创刊时间：1972
• 主管单位：中国科学院
• 主办单位：中国科学院广州地球化学研究所 中国矿物岩石地球化学学会
• 主编：涂光炽
• 地址：地球化学编辑部
• 邮编：510640
• 电子信箱：dqhx@gig.ac.cn dqhx@tom.com
• 卷：39
• 期：3
• 期刊索取号：P270.6208-2
• 核心期刊：中国自然科学核心期刊

摘要

XPS derived o charge has been compared for the alkali and alkaline earth aluminates,chromates,ferrates,molybdates,andtungstates,relative to the O charges for the single oxides,to test whether a significant shift in overall charge exists between 4-and 6-fold0 coordinated metalions.We find that coordination change tends not to affect the O charge significantly.The large chemical differencesassociated with coordination change must be attributed to the splitting up of the top of the valence band of the O_2P states in non-bonded andbonded electron density in the tetrahedrally coordinated complexes.