Textual properties of Cu-Mn mixed oxides and application for methyl formate synthesis from syngas
Textual properties of Cu-Mn mixed oxides and application for methyl formate synthesis from syngas
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铜锰混合氧化物的性质及其在合成气合成甲酸甲酯中的应用
DOI：
10.1016/j.jiec.2017.05.024
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发表时间：
2017
影响因子：
6.1
通讯作者：
Tang Zhicheng
中科院分区：
文献类型：
--
作者：
Zhao Haijun;Fang Kegong;Dong Fang;Lin Minggui;Tang Zhicheng;Sun Yuhan;Tang Zhicheng
Cu–Mn mixed oxides with different calcination temperatures were prepared using ammonia complexing method and evaluated for methyl formate (MF) synthesis from syngas with CaO–ZrO2as co-catalyst. The influence of calcination temperature on the structure and properties of Cu–Mn mixed oxides was investigated by appropriate characterizations. Cu1.5Mn1.5O4formed during the calcination of Cu–Mn catalyst at 450 °C and played a significant role in the MF synthesis. However, it partially decomposed into CuO and MnO2when the calcination temperature exceeded 550 °C. Results showed that the optimum MF selectivity was obtained on Cu–Mn catalyst calcined at 450 °C, and the highest CO conversion was obtained on the Cu–Mn sample with calcination temperature of 550 °C. The reaction mechanism of MF synthesis from syngas over Cu–Mn mixed oxides and CaO–ZrO2co-catalyst was thoroughly studied via typical model reactions, and the nucleophilic addition–elimination reaction mechanism was proposed.
