Preparation of CuMn-based SBA-15 catalysts and their performance in the catalytic combustion of toluene

ZHANG GuangHong1,2;JI ShengFu1;WAN HuiJun1;ZHAO FuZhen1;ZHU JiQi
ng1;LI ChengYue1

Journal of Beijing University of Chemical Technology ›› 2008, Vol. 35 ›› Issue (1) : 5-10.

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Journal of Beijing University of Chemical Technology ›› 2008, Vol. 35 ›› Issue (1) : 5-10.
化学与化学工程

Preparation of CuMn-based SBA-15 catalysts and their performance in the catalytic combustion of toluene

  • ZHANG GuangHong1,2;JI ShengFu1;WAN HuiJun1;ZHAO FuZhen1;ZHU JiQi
    ng1;LI ChengYue1
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Abstract

A series of Cu/SBA-15 (weight fraction 5%-17% Cu), Mn/SBA-15 (5%-17% Mn), CuMn/SBA-15 (5%-17%CuMn) and Ce/CuMn/SBA-15 catalysts (2.5%-7%Ce,12% CuMn) have been prepared. The activities of the materials in the catalytic combustion of toluene were evaluated in a continuous flow reactor at atmospheric pressure. The structures of the catalysts were investigated using XRD, TEM, and TPR. Cu/SBA-15 catalysts with above 12% Cu, Mn/SBA-15 catalysts with above 8% Mn, and CuMn/SBA-15 catalysts with above 8% CuMn all showed good activity in the catalytic combustion of toluene. The activities of the catalysts containing both Cu and Mn were superior to those of the catalysts containing only Cu or Mn. In the case of CuMn/SBA-15 catalysts, addition of 2.5%-3.5% Ce afforded an increase in the catalytic activity. The mesoporous structure of the SBA-15 precursor was retained in all of the catalysts with the active Cu, Mn, CuMn, and Cecomponents all confined in the SBA-15 mesopores. It was shown that Ce promoted dispersion of the CuMn species leading to an increased redox capability in the Ce/CuMn/SBA-15 catalysts. 

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ZHANG GuangHong1,2;JI ShengFu1;WAN HuiJun1;ZHAO FuZhen1;ZHU JiQi
ng1;LI ChengYue1.
Preparation of CuMn-based SBA-15 catalysts and their performance in the catalytic combustion of toluene[J]. Journal of Beijing University of Chemical Technology, 2008, 35(1): 5-10

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