催化作用
选择性
合成气
纳米颗粒
化学工程
化学
材料科学
无机化学
纳米技术
有机化学
工程类
作者
Yonglin Lu,Baobao Cao,Fei Yu,Jian Liu,Zhenghong Bao,Jinsen Gao
出处
期刊:Chemcatchem
[Wiley]
日期:2013-12-27
卷期号:6 (2): 473-478
被引量:64
标识
DOI:10.1002/cctc.201300749
摘要
Abstract We show that higher alcohols can be produced with high selectivity from syngas over three‐dimensionally ordered macroporous Cu–Fe catalyst. The catalyst was developed by using a glyoxylate route colloidal crystal template method. The high intrinsic activity was ascribed to three factors. First, the unique ordered structure has a large pore size and interconnected macroporous tunnels of the catalyst with a large accessible surface area improves the catalytic activity. Second, a high density of uniformly distributed defective Cu 0 and χ‐Fe 5 C 2 nanoparticles derived from the glyoxylate route helps to provide abundant, active, stable dual sites. Third, atomic steps on the Cu surface, induced by planar defects and lattice strain, serve as high‐activity oxygenation sites; and active χ‐Fe 5 C 2 chain‐growth sites surrounds the defective and strained form of Cu surface intimately, which results in a synergetic effect between the active and stable Cu–Fe x C y dual sites for higher alcohols synthesis.
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