高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (3): 449.

• 论文 • 上一篇    下一篇

Li+/MgO上乙烷氧化脱氧的活性中心[Li+O-]的研究

蔡炳新1, 张季爽1, 郑小明2   

  1. 1. 湖南大学化学化工系, 长沙, 410082;
    2. 杭州大学催化研究所
  • 收稿日期:1996-02-15 出版日期:1997-03-24 发布日期:1997-03-24
  • 通讯作者: 蔡炳新, 男, 39岁, 副教授.
  • 作者简介:蔡炳新, 男, 39岁, 副教授.
  • 基金资助:

    国家自然科学基金

Studies on [Li+O-]Centers in Oxidation-dehydrogenation of Ethane to Ethene on Li+/MgO Catalysts

CAI Bing-Xin1, ZHANG Ji-Shuang1, ZHENG Xiao-Ming2   

  1. 1. Department of Chemistry and Engineering, Hunan University, Changsha, 410082;
    2. Catalysis Institute, Hangzhou University, Hangzhou, 310028
  • Received:1996-02-15 Online:1997-03-24 Published:1997-03-24

摘要: 利用Li+/MgO催化剂上乙烷氧化脱氢制乙烯及IR、TPD等测试手段对外[Li+O-]中心的形成机理及其性质进行了研究,表明[Li+O-]中心最初生成与MgO表面的自由羟基相关,气相氧、反应温度配位数等对生成[Li+O-]有一定程度的影响.

关键词: [Li+O-]中心, 固体碱催化剂, 氧化脱氢

Abstract: In this paper, the formation mechanism and characterization of [Li+O-] centers on Li+/MgOare investigated by the reaction of oxidation-dehydrogenation of ethane to ethene.The concentration of the centers increases with disappearance of free hydroxyl groups ln Li+/MgO.

Key words: [Li+O-] centers, Solid base catalyst, Oxdiation-dehydrogenation

TrendMD: