引用本文:
于亚莉, 胡刚. 铈的卤氧化合物的ESCA表征Ⅰ.Ce3d、4d峰及其伴峰[J]. 应用化学,
1992, 9(1): 65-68.
Citation: Yu Yali, Hu Gang. CHARACTERIZATION OF CERIUM OXIDES AND CERIUM HALIDES BY ESCA I. Ce3d, 4d PHOTOELECTRON SPECTRA AND THEIR SATELLITE STRUCTURE[J]. Chinese Journal of Applied Chemistry, 1992, 9(1): 65-68.
Citation: Yu Yali, Hu Gang. CHARACTERIZATION OF CERIUM OXIDES AND CERIUM HALIDES BY ESCA I. Ce3d, 4d PHOTOELECTRON SPECTRA AND THEIR SATELLITE STRUCTURE[J]. Chinese Journal of Applied Chemistry, 1992, 9(1): 65-68.
铈的卤氧化合物的ESCA表征Ⅰ.Ce3d、4d峰及其伴峰
摘要:
为进一步研究配合物在双烯烃催化聚合反应体系中的作用,我们用XPS研究了一些铈的化合物,为探讨铈配合物的电子结构积累必要数据。对于某些简单的铈化合物,已有一些作者研究[1,2,3],对于Ce3d的伴峰指定是Shake-up过程[4],还是Shake-downw伴峰[5,6,7]说法不一。我们通过系统研究,对于Ce3d区域的峰提出一些看法。
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关键词:
- x-射线光电子能谱
- / shake-up伴峰结构
- / Ce的价态
English
CHARACTERIZATION OF CERIUM OXIDES AND CERIUM HALIDES BY ESCA I. Ce3d, 4d PHOTOELECTRON SPECTRA AND THEIR SATELLITE STRUCTURE
Abstract:
A study of the core-electron x-ray photoelectron spectra showed the presence of satellite structure for the 3d and 4d signals in Ce2O3, CeO2, CeCl3, CeF3. These satellites are discussed in terms of coexcitation of the charge transfer type principally O2p to Ce4f transitions. It is confirmed that in the cerium compounds studied the satellites are due to energy-loss (representing shake-up) rather than energy-gain (shake-down) processes.
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Key words:
- cerium
- / x-ray photoelectron spectrascopy
- / satellite structure
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