高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (4): 637.

• 研究简报 • 上一篇    下一篇

纳米Co3O4的制备、表征及CO低温催化氧化

贾明君1, 张文祥1, 陶玉国1, 王桂英1, 崔湘浩1, 张春雷1, 吴通好1, 董国强2, 李雪梅3   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 大庆石油管理局物探公司仪修厂, 大庆 163357;
    3. 雁北师范学院化学系, 大同 037004
  • 收稿日期:1998-05-25 出版日期:1999-04-24 发布日期:1999-04-24
  • 通讯作者: 张文祥
  • 作者简介:贾明君,男,28岁,博士研究生.
  • 基金资助:

    长春应用化学科学研究中心资助

Preparation, Characterization and CO Oxidation of Nanometer Co3O4

JIA Ming-Jun1, ZHANG Wen-Xiang1, TAO Yu-Guo1, WANG Gui-Ying1, CUI Xiang-Hao1, ZHANG Chun-Lei1, WU Tong-Hao1, DONG Guo-Qiang2, LI Xue-Mei3   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. Substance Exploration Corporation, Daqing Petroleum Administration, Daqing, 163357;
    3. Department of Chemistry, Yanbei Teacher’s College, Datong, 037004
  • Received:1998-05-25 Online:1999-04-24 Published:1999-04-24

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摘要： CO的常温催化氧化由于在消除环境污染、空气净化、CO传感器、封闭式CO2激光器及密闭系统内消除CO等方面的实用价值而颇受关注.已报道的CO催化氧化催化剂有Hopcalite、复合氧化物、贵金属[4,5]等.

关键词: 纳米Co3O4, 一氧化碳, 催化氧化

Abstract: Various nanometer Co3O4samples were prepared and the catalytic performance of COoxidation were examined. It was found that the activities of the catalysts were greatly changed with variation of the preparation methods and pretreatment conditions. Among the samples tested, Co3O4prepared by using dodecylbenzene sulfonic acid sodium salt(DBS) as the surfactant, calcined at 300℃ showed the highest activity and it was able to oxidize completely CO even at -78℃ . Characterization of these samples by XRD and BET means showed that the catalytic acitivity increased with the decrease of the average particle size, suggests that the average particle size of nanometer Co3O4samples is the main controlling factor of the catalytic activity.

Key words: Nanometer Co3O4, Carbon monooxide, Catalytic oxidation

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