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2012 , Vol. 70 >Issue 01: 39 - 44

DOI: https://doi.org/10.6023/A1104062

研究论文

固相法制备纳米Co3O4催化剂及其催化甲苯完全氧化性能

  • 熊德胜 ,
  • 秦枫 ,
  • 徐华龙 ,
  • 沈伟
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  • 上海市分子催化和功能材料重点实验室, 复旦大学先进材料实验室, 复旦大学化学系, 上海 200433

收稿日期: 2011-04-06

  修回日期: 2011-07-27

  网络出版日期: 2012-02-25

基金资助

863重点计划(No.2009AA033701)、上海市科学技术委员会基金(Nos.08DZ2270500,09DZ2271500)资助项目.

收起

Preparation of Co3O4 Catalysts by a Solid-state Reaction for Total Oxidation of Toluene

  • XIONG De-Sheng ,
  • QIN Feng ,
  • XU Hua-Long ,
  • SHEN Wei
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  • Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Department of Chemistry, Fudan University, Shanghai 200433

Received date: 2011-04-06

  Revised date: 2011-07-27

  Online published: 2012-02-25

Supported by

Project supported by the Chinese Ministry of Science and Technology,the“863”State Key Research Project(No.2009AA033701)and Science and Technology Commission of Shanghai Municipality(Nos.08DZ2270500,09DZ2271500).

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摘要

采用环境友好的固相法制备了高活性甲苯氧化Co3O4催化剂,通过与传统沉淀法和柠檬酸络合-燃烧法制备的 Co3O4催化剂比较,固相合成法制备的Co3O4-SR催化剂在催化甲苯完全氧化反应中表现了很好的活性和稳定性,甲苯转化率为95%时的反应温度T95为230℃,反应60 h活性没有下降.通过XRD,Raman,FT-IR,XPS等手段对Co3O4催化剂的结构和表面性能进行了表征,结果表明固相法制备的Co3O4催化剂具有较多的表面缺陷,催化剂表面Co—O键较弱,具有较强的活化氧的能力,表现出突出的甲苯完全氧化的催化活性.

关键词： 甲苯; 完全氧化; Co3O4催化剂; 固相法

本文引用格式

熊德胜 , 秦枫 , 徐华龙 , 沈伟 . 固相法制备纳米Co3O4催化剂及其催化甲苯完全氧化性能[J]. 化学学报, 2012 , 70(01) : 39 -44 . DOI: 10.6023/A1104062

Abstract

Highly active Co3O4 catalysts(Co3O4-SR)are synthesized by a simple and environmentally friendly solid-state reaction.Compared with Co3O4 made by precipitation and citrate methods,Co3O4-SR catalysts possess lager surface area,smaller particle size,weaker surface Co—O bond and more surface de- fects.Co3O4-SR catalysts exhibit high activity and stability for total oxidation of toluene,with a toluene conversion of 95%at 230℃without any observable trend of deactivation in 60h.

Key words： toluene; total oxidation; cobalt oxide; solid-state reaction

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