CatalyticCombustionofMethaneoverMnOx/ZrO2-Al2O3Catalysts

被引：0

作者：

Xiufeng Xu Yanfei Pan Yanxia Liu Zhanghuai Suo Shixue Qi Lidun AnInstitute of Applied Catalysis Yantai University Yantai China ^{[264005
]}

Analysis Center Yantai University Yantai China ^{[264005
]}

机构：

来源：

Journal of Natural Gas Chemistry | 2003年 / 04期

关键词：

MnOx/Al2O3; MnOx/ZrO2-Al2O3; X-ray diffraction; temperature programmed reduction; catalytic combustion; methane;

D O I：

暂无

中图分类号：

O643.3 [催化];

学科分类号：

081705 ;

摘要：

<正> MnOx/Al2O3 and MnOx/ZrO2-Al2O3 catalysts were prepared by incipient wetness impreg-nation of Mn（CH3COO）2 on the corresponding supports, followed by the characterization using X-raydiffraction （XRD）, temperature programmed reduction （TPR） and BET surface area techniques. Theresult shows the BET surface area of ZrO2-Al2O3 is lower than that of Al2O3 due to the loading of ZrO2.However the resulted MnOx/ZrO2-Al2O3 catalyst exhibits higher activity for methane combustion thanMnOx/Al2O3, because the addition of ZrO2 onto Al2O3 is beneficial for the dispersion of Mn species andthe improvement of the lattice oxygen activity in MnOx, subsequently tbe activation of methane duringcombustion. The optimum loading of Zr in MnOx/ZrO2-Al2O3 is in the range of 5%-10% correlated withthe calcination temperatures of catalyst supports.

引用

页码：228 / 232

页数：5