摘要
用差热分析（TG／DTA）技术研究了CuO／SiO2和CuO－ZnO／SiO2催化剂于H2气下的还原行为和在O2气下的氧化行为及对其催化性能的影响．结果表明，ZnO的加入有利于催化剂的热稳定性，并对CuO的还原有促进作用；在有氧化气氛存在时，ZnO的加入不利于保持CU0的还原态。
The reduction behavior under H2 atmosphere and oxidation behavior under O2 at mosphere and their influence to its catalytic character of CuO/SiO2, and CuO-ZnO/SiO2 cata lysts have been investigated by means of DTA and TG. The results show that the thermal stability titled catalysts is raised by ZnO. The existence of ZnO accelerate the rate of reduc tion of Cuo and is no good for Cuo.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
1998年第3期330-334,共5页
Journal of Fudan University：Natural Science
关键词
催化剂
甲醇
甲酸甲酯
热分析
CuO/SiO_2 catalyst
TG/DTA
methanol
methyl formate
