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LaMnyCo1-yO3催化剂中氧状态的XPS研究
引用本文:张瑞峰,李兴林,刘社田,于作龙,吴越.LaMnyCo1-yO3催化剂中氧状态的XPS研究[J].物理化学学报,1994,10(8):720-723.
作者姓名:张瑞峰  李兴林  刘社田  于作龙  吴越
作者单位:Changchun Institute of Applied Chemistry,Academia Sinica,Changchun 130022
摘    要:钙铁石型稀土复合氧化物因其结构和性能的多样性,作为重要的功能材料(超导体、电极材料、光学材料、催化剂等)受到普遍重视1]ABO3型稀土复合氧化物热稳定性高·文献2-4]曾报导了La1-xCexCoO3、La1-xAx-Mno。、Lal。Sr。CoO。催化剂体系A位离子的偏析、价态和氧的非化学计量问题.本文是保持A位离子La不变,B位离子由Mn、Co组成的体系,通过B位离子组合来讨论过渡金属离子的电子组态导致氧状态变化对催化性能的影响.1实验部分(1)试剂:La(NO3h、Mn(NO3h、Co(NO小分析结(2)催化剂制备:按化学计量比混合溶液,用…

关 键 词:氧状态  XPS研究  催化剂  
收稿时间:1993-02-16
修稿时间:1993-07-19

XPS Study of the Oxygen State in LaMn_yCo_(1-y)O_3 Catalysts
Zhang Ruifeng, Li Xinglin, Liu Shetian, Yu Zuolong, Wu Yue.XPS Study of the Oxygen State in LaMn_yCo_(1-y)O_3 Catalysts[J].Acta Physico-Chimica Sinica,1994,10(8):720-723.
Authors:Zhang Ruifeng  Li Xinglin  Liu Shetian  Yu Zuolong  Wu Yue
Institution:Changchun Institute of Applied Chemistry,Academia Sinica,Changchun 130022
Abstract:A series .of LaMnyCo1-yO3 compounds were prepared by the complexation method with citric acid. XPS was used to investigate the oxygen state in perovskite-type (ABO3) Complex oxide LaMnyCo1-yO3 catalysts. The result showed that three oxygen species (α,β,β') are present in the oxides, and that theα-species is the active oxygen species in catalytical oxidation.
Keywords:Oxygen species  XPS study  Catalysts
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