中华医学超声杂志

应用化学 ›› 1991, Vol. 0 ›› Issue (2): 65-68.

• 研究论文 • 上一篇    下一篇

LaMn1-yFeyO3对CH4和CO的催化氧化作用

崔豪星1, 金美善1, 李晶明1, 彭美春2, 张华2   

  1. 1. 中国科学院长春应用化学研究所, 长春 130022;
    2. 吉林工业大学汽车学院, 长春
  • 收稿日期:1989-11-21 修回日期:1990-07-16 出版日期:1991-04-10 发布日期:1991-04-10

CATALYTIC OXIDATION OF CH4 AND CO OVER LaMn1-yFeyO3 CATALYSTS

Cui Haoxing1, Jin Meishan1, Li Jingming1, Peng Meichun2, Zhang Hua2   

  1. 1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
    2. Automobile Institute, Jilin University of Technology, Changchun
  • Received:1989-11-21 Revised:1990-07-16 Published:1991-04-10 Online:1991-04-10

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摘要： 用程序升温脱附试验考察了LaMn1-yFeyO3型催化剂中B位元素对Co、CH4氧化活性的影响。发现催化剂的活性与TPD谱上脱氧峰的位置及面积有关,同一催化剂对CO与CH4的氧化活性中心并不一致。以γ-Al2O3为载体制得的锰系ABO3型催化剂在浸渍微量氧化物助催化剂后,能使CO在130℃完全氧化,CH4的氧化温度为300～500℃。

关键词: 镧, 锰, 复合氧化物, 催化活性, 氧化, 一氧化碳, 甲烷

Abstract: The effects of B-site elements in LaMn1-yFeyO3 catalysts on the oxidation of CO and CH4 have been studied using temperature programmed desorption spectra measurements.Theactivity of the catalyst was related with both position and areas of oxygen desorption peakson the TPD curves.The active sites for CO and CH4 oxidation are not identical for thesame catalyst.CO was oxidized completely at 130℃ and CH4 at 300～500℃ over a ABO3-type catalyst of γ-Al2O3-supperted manganese system containing some additive oxides

Key words: lanthanide, manganese, multi oxide, catalytic activity, oxidation, carbon monoxide, methane

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