氧合物
合成气
选择性
催化作用
化学
有机化学
组合化学
作者
Tiejun Lin,Xingzhen Qi,Xinxing Wang,Lin Xia,Caiqi Wang,Fei Yu,Hui Wang,Shenggang Li,Liangshu Zhong,Yuhan Sun
标识
DOI:10.1002/ange.201814611
摘要
Abstract Selective synthesis of higher oxygenates (linear α‐alcohols and α‐aldehydes, C OH) from syngas is highly attractive but remains challenging owing to the low C OH selectivity and low catalytic stability. Herein we introduce a multifunctional catalyst composed of CoMn and CuZnAlZr oxides that dramatically increased the oxygenates selectivity to 58.1 wt %, where more than 92.0 wt % of the produced oxygenates are C OH. Notably, the total selectivity to value‐added chemicals including oxygenates and olefins reached 80.6 wt % at CO conversion of 29.0 % with high stability. The appropriate component proximity can effectively suppress the formation of the undesired C1 products, and the selectively propulsion of reaction network by synergetic effect of different components contributes to the enhanced selectivity to higher oxygenates. This work provides an alternative strategy for the rational design of new catalysts for direct conversion of syngas into higher oxygenates with co‐production of olefins.
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