物理化学学报 >> 1993, Vol. 9 >> Issue (02): 170-174.doi: 10.3866/PKU.WHXB19930206

研究论文 上一篇    下一篇

碱土金属氧化物和过氧化物的O1s电子结合能测定

赵良仲   

  1. 中国科学院化学研究所,北京 100080
  • 收稿日期:1991-11-11 修回日期:1992-03-26 发布日期:1993-04-15
  • 通讯作者: 赵良仲

Determination of O1s Binding Energies of the Alkaline Earth Oxides and Peroxide

Zhao Liang-Zhong   

  1. Institute of Chemistry, Academia Sinica, Beijing 100080
  • Received:1991-11-11 Revised:1992-03-26 Published:1993-04-15
  • Contact: Zhao Liang-Zhong

摘要:

通过在谱仪真空中对碱土金属氧化物作原位加热, 使其表面碳酸盐分解, 然后记录其晶格氧的O_(1s)电子结合能. 结果表明测得的MgO, CaO, SrO和BaO 的O_(1s)结合能明显地低于大部分文献报导的数值. 本文测得的碱土金属氧化物的O_(1s)电子结合能与氧原子上的Sanderson电荷分数有合理的相关性. 本文测得的BaO_2的O_(1s)结合能是530.9 eV, 它比文献报导的数值要低.

关键词: X光电子能谱, 氧的内层电子结合能, 碱土金属氧化物, BaO2

Abstract: The O_(1s) binding energy of MgO, CaO, SrO and BaO were determined by means of XPS. Prior to the determination,the samples were heated in the spectrometer at 400 ℃. The surface carbonates were partly decomposed and the O_(1s) spectra of lattice oxygen of the oxides were recorded. The O_(1s) binding energies of MgO, CaO and SrO determined by present work are lower than that reported in the literatures. A reasonable correlation between O_(1s) binding energies determined by present work and the partial charge on oxygen calculated by Sanderson for these alkaline earth oxides are found. The O_(1s) binding energy of BaO_2 determined by present work is 530.9 eV which is also lower than that reported in the literatures.

Key words: XPS, O1s binding energy, Alkaline earth oxides, Barium peroxide