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Catalytic Hydrogenation of Methyl Acetate to Ethanol over Boron Doped Carbon Aerogels Supported Cu Catalyst
Author(s) -
Wu Mengmeng,
Hou Xiaoxiong,
Quan Yanhong,
Zhao Jinxian,
Ren Jun
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202002958
Subject(s) - catalysis , boron , copper , selectivity , inorganic chemistry , chemistry , ethanol , syngas , methyl acetate , carbon fibers , nuclear chemistry , materials science , organic chemistry , composite number , composite material
The hydrogenation of methyl acetate (MA) is a crucial step to obtain ethanol from coal‐syngas indirectly. In this paper, boron doped carbon aerogel (BCAs) has been prepared successfully and applied as support for copper‐base catalyst due to its unique physicochemical properties. The influence of boron on copper‐based catalysts Cu/xBCAs (x=1, 3, 5) for the hydrogenation of methyl acetate (MA) to ethanol is studied systematically. H 2 ‐N 2 O and XRD prove that appropriate amount of boron not only improves the dispersion of active copper species, but also achieves the higher percentage of Cu + in (Cu + +Cu 0 ). The catalyst Cu/3BCAs performs the best catalytic activity with methyl acetate (MA) conversion of 90.6 % and ethanol selectivity of 59.9 %, respectively. The high catalytic activity comes from the highest proportion of Cu + on the Cu/3BCAs due to the lower reducibility of Cu + species caused by the relatively high affinity of boron with electrons.