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Determining Roles of Cu 0 in the Chemosynthesis of Diols via Condensed Diester Hydrogenation on Cu/SiO 2 Catalyst
Author(s) -
Wang Weichao,
Wang Hui,
Zhang Jingwei,
Kong Lingxin,
Huang Huijiang,
Liu Wei,
Wang Shengping,
Ma Xinbin,
Zhao Yujun
Publication year - 2020
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.202000547
Subject(s) - catalysis , copper , chemistry , selectivity , adsorption , hydrogen , inorganic chemistry , reaction mechanism , organic chemistry
Copper‐based catalyst was applied in the condensed diester hydrogenation with unexpected high selectivity (∼100 %) to 1,6‐hexanediol. On basis of the mass transfer analysis and kinetics results, the reaction rate of the condensed diester hydrogenation was deduced to be controlled by the activation of hydrogen on Cu 0 sites, which was further demonstrated by the correlations between the catalytic activity and different copper species. Importantly, this catalysis mechanism is different with that of gas‐phase diester hydrogenation, which is generally determined by the adsorption of ester on Cu + species.