铜
甲醇
共沉淀
催化作用
无机化学
化学
金属
碳酸二甲酯
纳米棒
碳酸二乙酯
空间速度
材料科学
化学工程
冶金
有机化学
选择性
纳米技术
物理化学
工程类
电解质
碳酸乙烯酯
电极
作者
Huabo Li,Yuanyuan Cui,Qianqian Liu,Wei‐Lin Dai
出处
期刊:Chemcatchem
[Wiley]
日期:2018-01-05
卷期号:10 (3): 619-624
被引量:27
标识
DOI:10.1002/cctc.201701384
摘要
Abstract Various Cu/CeO 2 nanorod catalysts with different copper contents were synthesized through a facile coprecipitation method for the hydrogenation of diethyl carbonate to methanol in a fixed‐bed reactor. The methanol yield increased upon increasing the copper loading, but large excess amounts of copper led to deactivation of the catalyst at a high liquid hourly space velocity because of aggregation of the active metal. The 20Cu/CeO 2 and 30Cu/CeO 2 catalysts displayed superior catalytic performance with methanol space‐time yields of 8.4 and 8.1 mmol g cat −1 h −1 , respectively. The remarkably enhanced catalytic performance was mainly ascribed to a high Cu 0 surface area, appropriate ratio of Cu + /Cu 0 , and more surface oxygen vacancies associated with Ce 3+ , which stemmed from a strong interaction between Cu and the CeO 2 support.
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