物理化学学报 >> 2008, Vol. 24 >> Issue (03): 364-368.doi: 10.1016/S1872-1508(08)60015-7

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乙酸乙酯在Al2O3-Ce0.5Zr0.5O2负载的金属氧化物催化剂上的催化燃烧

袁书华; 沈美; 龚茂初; 王健礼; 闫生辉; 曹红岩; 陈耀强   

  1. 四川大学化学学院催化材料研究所, 成都 610064
  • 收稿日期:2007-09-25 修回日期:2007-11-27 发布日期:2008-03-10
  • 通讯作者: 陈耀强 E-mail:nic7501@email.scu.edu.cn

Catalytic Combustion of Ethyl Acetate over Al2O3-Ce0.5Zr0.5O2 Supported Metal Oxide Catalysts

YUAN Shu-Hua; SHEN Mei; GONG Mao-Chu; WANG Jian-Li; YAN Sheng-Hui; CAO Hong-Yan; CHEN Yao-Qiang   

  1. Institute of Catalytic Material Science, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
  • Received:2007-09-25 Revised:2007-11-27 Published:2008-03-10
  • Contact: CHEN Yao-Qiang E-mail:nic7501@email.scu.edu.cn

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摘要： 制备了Fe, Co, Cu, Cr和Mn金属氧化物催化剂, 所用载体为Al2O3-Ce0.5Zr0.5O2复合氧化物. 利用X射线衍射(XRD), 程序升温还原(TPR), 储氧量测试, BET比表面测试和光电子能谱(XPS)表征了催化剂. 并利用活性测试表征了各种催化剂对乙酸乙酯催化燃烧能力. 各种表征结果证实, 由于催化剂Mn/Al2O3-Ce0.5Zr0.5O2(1:2, 质量比)具有最多的可还原物种, Cu/Al2O3-Ce0.5Zr0.5O2(1:2)具有较多的可还原物种和最强的可还原能力, 使它们对乙酸乙酯催化燃烧表现出了最好的活性. 在催化剂Cu/Al2O3-Ce0.5Zr0.5O2(1:2)和Mn/Al2O3-Ce0.5Zr0.5O2(1:2)上, 乙酸乙酯于245 ℃转化了99%, 表明这两种催化剂具有广泛的应用潜力.

关键词: 乙酸乙酯, 催化燃烧, 挥发性有机化合物

Abstract: The catalysts for the combustion of ethyl acetate were prepared using Fe, Co, Cu, Cr, andMn metal oxides as active components supported on Al2O3-Ce0.5Zr0.5O2 mixed oxides and characterized by X-ray diffraction (XRD), temperature programmed reduction (TPR), oxygen storage capacity measurement, BET surface area, XPS measurement, and activity test. According to the results of characterization, it was found that Cu/Al2O3-Ce0.5Zr0.5O2 (1:2, mass ratio) andMn/Al2O3-Ce0.5Zr0.5O2 (1:2) catalysts presented excellent activity for the catalytic combustion of ethyl acetate, because of the more reducible species and high reducibility of the catalysts. For ethyl acetate oxidation, more than 99% conversion was achieved at 245 ℃ over catalysts Cu/Al2O3-Ce0.5Zr0.5O2 (1:2) and Mn/Al2O3-Ce0.5Zr0.5O2 (1:2, mass ratio), indicating that the catalysts had great potential for wide use.

Key words: Ethyl acetate, Catalytic combustion, Volatile organic compound

MSC2000: 

  • O643