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.
出处
《华东理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第4期460-465,共6页
Journal of East China University of Science and Technology
