高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (2): 268.

• 研究简报 • 上一篇    下一篇

锂在甲烷氧化偶联催化剂中的助催化作用

杨向光1, 毕颖丽1, 甄开吉1, 王吉祥2, 刘雅言2, 詹瑞云2, 吴越2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 中国科学院长春用化学研究所
  • 收稿日期:1992-03-11 修回日期:1992-02-29 出版日期:1993-02-24 发布日期:1993-02-24
  • 通讯作者: 毕颖丽
  • 基金资助:

    国家自然科学基金

The Function of Lithium as a Promoter in Oxidative Coupling of Methane

YANG Xiang-Guang1, BI Ying-Li1, ZHEN Kai-Ji1, WANG Ji-Xiang2, LIU Ya-Yan2, ZHAN Ri-Yun2, WU Yue2   

  1. 1. Department of Chemistry, Mat University, Changchun, 130023;
    2. Changchan Insitnte of Applied Chemistry, Ghinese Academy of Sicences Changchun
  • Received:1992-03-11 Revised:1992-02-29 Online:1993-02-24 Published:1993-02-24

PDF (PC)

被引次数

2

关键词: 甲烷, 氧化偶联, 锂

Abstract: in this paper, the function of lithium as a promoter in oxidative coupling of methane is reported.Based on the determination of different lithium salts, the authors found that the addition of lithium sulphate showed a higher selectivity for C2 formation, that of LiNO3 gave better C2 yield, the difference of catalytical properties over the two catalysts is related to the different forms of lithium.In Li/CaOcatalyst the active center is [LiO] and in Li/La2O3 catalyst the active site is the surface non-stoichiometric oxide of La.O,.Additionlly, the difference of the relations between the structrue and catalytic properties of Li/La2C>3 and Li-La/CaOcatalysts was studied as well.Based on the results of luminescence emission spectra determination, we also clarfied the interaction between Li and CaO, La2O3 correlated to the account of lithium.

Key words: Methane, Oxidative coupling, Lithium

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