摘要
用共沉淀法制备了BaCO3修饰的NiO和Co3O4,用于N2O分解反应的催化剂.研究发现,有最佳组成的BaCo6催化剂比BaxNi6（x=0-2）催化剂活性更高.对于BaCo6催化剂,加入了适量作为黏结剂的勃姆石以增加催化剂的力学强度.所得BaCo6Al2.3催化剂,既有很好的力学强度又有较高的催化活性.在450℃,该BaCo6Al2.3催化剂在含0.2%N2O、5%O2、2%H2O、0.01%NO的Ar气氛中,表现出非常稳定的催化活性.
NiO,Co3O4 doped by BaCO3 are prepared by coprecipitation to be used as catalysts for N2 O decomposition.It is found that the BaCo6 catalyst with the optimum composition is much more active than the series of BaxNi6（x=0-2）catalysts.For the BaCo6 catalyst,to increase its mechanical strength,boehmite as binder is added in appropriate amount,which leads to the BaCo6Al2.3catalyst with both better mechanical strength and desired activity for application.At 450 ℃,the BaCo6Al2.3catalyst exhibits a stable catalytic activity with time on stream for the feed gas 0.2% N2 O,5% O2,2% H2 O,0.01% NO in Ar.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
2016年第5期447-453,共7页
Journal of Dalian University of Technology
基金
"八六三"国家高技术研究发展计划资助项目(2013AA030705)
国家自然科学基金资助项目(21177016
21277019)
关键词
N2O分解
催化稳定性
力学强度
杂质气体
N2O decomposition
catalytic stability
mechanical strength
impurity gas
作者简介
吴星星（1991-）,女,硕士生,E-mail：wuxing91@163.com;
王新平（1958-）,男,教授,博士生导师,E-mail：dllgwxp@dlut.edu.cn.
