铈的卤氧化合物的ESCA表征Ⅰ.Ce3d、4d峰及其伴峰

• 作 者: 于亚莉 胡刚
• 机 构: 中国科学院长春应用化学研究所,中国科学院长春应用化学研究所 长春 130022,长春 130022
• 出 处: 应用化学
• 发表日期: 1992年01期
• 关键词: ESCA photoelectron Ce3d 氧化合物 Ce的价态 cerium shake 电荷转移 transitions 分析纯

A study of the core-electron x-ray photoelectron spectra showed the presence of satellite structure for the 3d and 4d signals in Ce_2O_3, CeO_2, CeCl_3, CeF_3. 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.

A study of the core-electron x-ray photoelectron spectra showed the presence of satellite structure for the 3d and 4d signals in Ce_2O_3, CeO_2, CeCl_3, CeF_3. 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 (shake-up) rather than energy-gain (shake-down) processes.