High-performance microstructured Au-Ag bimetallic catalyst for oxidative coupling of methanol to methyl formate
High-performance microstructured Au-Ag bimetallic catalyst for oxidative coupling of methanol to methyl formate
复制标题
用于甲醇氧化偶联制甲酸甲酯的高性能微结构Au-Ag双金属催化剂
DOI:
10.1016/j.catcom.2019.105741
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发表时间:
2019-09
影响因子:
3.7
通讯作者:
Liu Jiawen
中科院分区:
文献类型:
--
作者:
Zhang Qiaofei;Zhu Chunshan;Yang Ganghua;Sun Yige;Wang Dongsheng;Liu Jiawen
Microfibrous-structured 1Au-xAg/Al-fiber (x = 0.2, 0.4 and 0.6 wt%) catalysts prepared by galvanic stepwise deposition of Au and Ag onto Al-fiber network have been tested for the oxidative coupling of methanol to methyl formate. Among these catalysts, 1Au-0.2Ag/Al-fiber provided high activity, selectivity and good stability, by nature, due to the well-dispersed Ag metal phase to facilitate the availability of reactive oxygen species. The increase of Ag loading led to the screening of surface Au which favours the adsorption of methanol, thus deteriorating methanol conversion.
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