新型金属一体化催化剂在甲烷催化燃烧中的性能  

Methane Catalytic Combustion Using a Novel Metallic Monolith Catalyst

作　　者：李华波[1] 唐黎华[1] 张琪[2] 樱井诚 朱子彬[1] 龟山秀雄[2] 

机构地区：[1]华东理工大学化学工程系,上海200237 [2]东京农工大学化学工程系,东京1840012

出　　处：《华东理工大学学报（自然科学版）》2007年第4期460-465,共6页Journal of East China University of Science and Technology

摘　　要：以Clad芯材铝板(Al/Alloy/Al)为原材料,利用铝的阳极氧化技术制备出新型金属一体化阳极氧化-γAl2O3载体。并利用这种载体采用浸渍法制备了Pt/Al2O3/Alloy、Pd/Al2O3/Alloy及Pd-Pt/Al2O3/Alloy催化剂,考察了各催化剂在甲烷燃烧中的性能。结果表明:低温下(<500℃)Pt/Al2O3/Alloy催化剂活性较差,而在高温下(>700℃)Pd/Al2O3/Alloy催化剂容易失活。向Pd/Al2O3/Alloy催化剂中加入一定量的Pt后(Pd-Pt/Al2O3/Alloy),明显提高了PdO的分解温度,从而提高了催化剂的活性及稳定性。A novel metallic monolith anodic γ-Al2O3 support was prepared by aluminum anodization technology using a clad aluminum plate, i.e. Al/Alloy/Al. The catalytic combustion of methane was studied on Pt/Al2O3/Alloy, Pd/Al2O3/Alloy and Pd-Pt/Al2O3 /Alloy catalyst prepared by impregnation method. The results suggest that at the range of low temperature（〈500 ℃）, Pt/Al2O3/Alloy catalyst has a weak activity, while at the range of high temperature（〉 700 ℃）, Pd/Al2O3/Alloy catalyst is easily deactivated. The addition of Pt to Pd/Al2O3 /Alloy catalyst increases the decomposition temperature of PdO, as a result, improves the activity and stability of the catalyst.

关 键 词：阳极氧化 Pd-Pt/Al2O3/Alloy 程序升温氧化 甲烷催化燃烧 

分 类 号：O643.36[理学—物理化学]