引用本文:
赵良仲. 硫酸铈中铈的价态及其温度依赖性的XPS研究[J]. 物理化学学报,
1988, 4(01): 71-73.
doi:
10.3866/PKU.WHXB19880113
Citation: Zhao Liangzhong. XPS STUDIES OF MIXED VALENCE IN CERIC SULFATE AND ITSTEMPERATURE DEPENDENCE[J]. Acta Physico-Chimica Sinica, 1988, 4(01): 71-73. doi: 10.3866/PKU.WHXB19880113
Citation: Zhao Liangzhong. XPS STUDIES OF MIXED VALENCE IN CERIC SULFATE AND ITSTEMPERATURE DEPENDENCE[J]. Acta Physico-Chimica Sinica, 1988, 4(01): 71-73. doi: 10.3866/PKU.WHXB19880113
硫酸铈中铈的价态及其温度依赖性的XPS研究
English
XPS STUDIES OF MIXED VALENCE IN CERIC SULFATE AND ITSTEMPERATURE DEPENDENCE
Abstract:
XPS studies show that ceric sulfate seems to be a mixed valent compound. The ground state is considered as a mixture of two configurations, i.e. 4f~0 and 4f~1. The products of thermal decomposition of ceric sulfate and hence the valence of cerium are related to temperature. For example, after heating Ce(SO_4)_2·4H_2O at temperature between 250 ℃ and 700 ℃ for 2 hours, cerous sulfate (or probably also cerous oxysulfates) were formed. After heating at 800 ℃ for 2 hours, Ce(SO_4)_2·4H_2O was ultimately decomposed into CeO_2.
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