文献类型：期刊文献

英文题名：An effective Cu-Ag/HMS bimetallic catalyst for hydrogenation of methyl acetate to ethanol

作者：Sheng, Haibing[1];Zhang, Haitao[1];Ma, Hongfang[1];Qian, Weixin[1];Ying, Weiyong[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Minist Educ, Engn Res Ctr Large Scale Reactor Engn & Technol, Shanghai 200237, Peoples R China

年份：2020

卷号：358

起止页码：122

外文期刊名：CATALYSIS TODAY

收录：;EI(收录号：20192507059392);WOS:【SCI-EXPANDED(收录号:WOS:000600787600014)】；

基金：We acknowledge the financial support from the Fundamental Research Funds for the Central Universities (No.222201917013).

语种：英文

外文关键词：Cu-Ag intermetallic; Methyl acetate; Hydrogenation; Ethanol

摘要：A highly efficient silver doped Cu/HMS catalyst was prepared via a co-ammonia evaporation method for the synthesis of ethanol by methyl acetate (MA) hydrogenation. The catalysts were characterized by X-ray diffraction, N-2 adsorption-desorption, H-2 temperature-programmed reduction, fourier-transform infrared spectroscopy, transmission electron microscopy, energy dispersive spectroscopy-mapping, N2O titration, Auger electron spectroscopy and X-ray photoelectron spectroscopy. The characterization results confirmed that introducing appropriate silver to Cu/HMS catalysts improved the dispersion of copper and achieved the Cu-Ag intermetallic nanoparticles. In addition, the interaction between Ag and Cu species increased the ratio of Cu+/(Cu-0+Cu+), which enhanced the adsorption of MA, so as to promote the conversion of MA and ethanol selectivity. Over the Cu1Ag/HMS catalyst, MA conversion and ethanol selectivity reached 94.4% and 88.5%, respectively.