ZrO_2含量对CuO/YSZ-Al_2O_3催化剂催化甲烷燃烧性能的影响  

INFLUENCE OF ZrO_2 LOADING ON PERFORMANCE OF CuO/Y_2O_3-ZrO_2-Al_2O_3FOR CATALYTIC METHANE COMBUSTION

作　　者：郑舒[1] 王树新 

机构地区：[1]河南机电高等专科学校电气系,河南新乡453002 [2]新乡远东电子科技有限公司

出　　处：《石油炼制与化工》2013年第8期19-22,共4页Petroleum Processing and Petrochemicals

基　　金：国家重大基础研究前期研究项目基金(2003CCA03200)资助

摘　　要：为获得高活性和高温稳定性好的甲烷燃烧催化剂,采用溶胶凝胶法制备了CuO/YSZ-Al2O3催化剂。通过改变ZrO2在YSZ-Al2O3载体中的含量制得不同ZrO2含量的CuO/YSZ-Al2O3催化剂,并考察ZrO2含量对催化剂催化甲烷燃烧性能的影响,同时利用BET、XRD等测试手段对催化剂进行了表征。结果表明:ZrO2在载体中存在最佳含量,当ZrO2质量分数为32.5%时,催化剂的活性和高温稳定性最好;该催化剂经1 000℃、5h老化后,仍具有较高的比表面积和高温稳定性,是一种性能优异的甲烷燃烧催化剂。In order to obtain the high active catalysts for methane combustion at low temperature and good stability at high temperature, CuO/YSZ-γ-Al2O3 catalysts were prepared by sol-gel method. The effects of ZrO2 amount in carrier on the performance of CuO/YSZ-γ-A1203 were investigated, and the catalysts were characterized by XRD, BET and TPR techniques. The results show that the catalyst with 32.5% ZrO2 in carrier exhibits the best stability and activity. After aging at 1 000℃ for 5 h, the catalyst still has high specific surface area and better stability.

关 键 词：甲烷 催化燃烧 Y2O3-ZrO2-Al2O3 CuO活性组分 

分 类 号：O643.36[理学—物理化学]