Premium
High Selectivity Higher Alcohols Synthesis from Syngas over Three‐Dimensionally Ordered Macroporous Cu‐Fe Catalysts
Author(s) -
Lu Yongwu,
Cao Baobao,
Yu Fei,
Liu Jian,
Bao Zhenghong,
Gao Jinsen
Publication year - 2014
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201300749
Subject(s) - catalysis , selectivity , syngas , nanoparticle , chemical engineering , chemistry , materials science , inorganic chemistry , nanotechnology , organic chemistry , engineering
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.