高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (1): 107.

• 论文 • 上一篇    下一篇

La2-xSrxNiO4上氧的TPD及其氧化活性

楼辉, 郑洪元, 杨菊英, 姚志强, 俞逊, 杜少斌, 马福泰   

  1. 杭州大学化学系, 杭州 310028
  • 收稿日期:1994-02-04 修回日期:1994-06-14 出版日期:1995-01-24 发布日期:1995-01-24
  • 通讯作者: 楼辉,男,38岁,硕士,副教授.
  • 作者简介:楼辉,男,38岁,硕士,副教授.
  • 基金资助:

    浙江省自然科学基金

Temperature Programmed Desorption of Oxygen and Oxidative Activity of La2-xSrxNiO4

LOU Hui, ZHENG Hong-Yuan, YANG Ju-Ying, YAO Zhi-Qiang, YU Xun, DU Shao-Bin, MA Fu-Tai   

  1. Department of Chemistry, Hangzhou University, Hangzhou, 310028
  • Received:1994-02-04 Revised:1994-06-14 Online:1995-01-24 Published:1995-01-24

摘要: La2-xSrxNiO4上O2的TPD研究表明,氧的脱附性能与催化剂结构中Ni2+和Ni3+的性质及含量有关,晶格氧直接参与了CO的氧化与甲烷的氧化偶联。

关键词: La2-xSrxNiO4, O2-TPD, CO氧化, 甲烷氧化偶联

Abstract: TPD of oxygen and catalytic activity of oxidation of CO and oxidative coupling of methane on La2-xSrxNiO4were studied. It was shown that two oxygen desorption peaks from two different temperature ranges were related to Ni2+and Ni3+ions in the crystal structure,respectively. The uptake of O2desorbed at a lower temperature increased when the amount of Ni2+increased,while the uptake of O2desorbed at a higher temperature increased with the increase of Ni2+content.The crystal oxygen took part in the reactions of CO oxidation and OCM directly.

Key words: La2-xSrxNiO4, O2-TPD, CO oxidation, Oxidatiye coupling of methane

TrendMD: