乙酸乙酯在Al_2O_3-Ce_(0.5)Zr_(0.5)O_2负载的金属氧化物催化剂上的催化燃烧(英文)  

Catalytic Combustion of Ethyl Acetate over Al_2O_3-Ce_(0.5)Zr_(0.5)O_2 Supported Metal Oxide Catalysts

作　　者：袁书华[1] 沈美[1] 龚茂初[1] 王健礼[1] 闫生辉[1] 曹红岩[1] 陈耀强[1] 

机构地区：[1]四川大学化学学院催化材料研究所,成都610064

出　　处：《物理化学学报》2008年第3期364-368,共5页Acta Physico-Chimica Sinica

基　　金：国家重点基础研究发展规划项目(973)(G1999022407);国家高技术研究发展计划(863项目)(2006AA06Z347)资助

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.The catalysts for the combustion of ethyl acetate were prepared using Fe, Co, Cu, Cr, and Mn 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） and Mn/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.

关 键 词：乙酸乙酯 催化燃烧 挥发性有机化合物 

分 类 号：O643.3[理学—物理化学]