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From Single Metal to Bimetallic Sites: Enhanced Higher Hydrocarbons Yield of CO 2 Hydrogenation over Bimetallic Catalysts
Author(s) -
Cui Yu,
Guo Lisheng,
Gao Weizhe,
Wang Kangzhou,
Zhao Heng,
He Yingluo,
Zhang Peipei,
Yang Guohui,
Tsubaki Noritatsu
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202101072
Subject(s) - bimetallic strip , catalysis , cobalt , yield (engineering) , carbide , hydrocarbon , materials science , metal , chemical engineering , chemistry , inorganic chemistry , metallurgy , organic chemistry , engineering
Massive CO 2 emission has led to a series of ecological and environmental problems. Sustainable conversion and utilization of CO 2 is one of the focuses of today‘s society. However, the inertness of CO 2 molecules and weak chain growth ability limit the efficient utilization of CO 2 . Herein, different from conventional Fe‐based catalysts, a series of bimetallic catalysts (FeCo) were prepared to investigate the effects of cobalt species existence on catalytic yield of CO 2 hydrogenation. The existence of cobalt promotes the formation of small‐size iron carbides. Meanwhile, a suitable surface composition of Co (2.4 at. %) and Fe (7.4 at. %) element is helpful to promote the selective generation of C 2+ products, thus presenting a high yield (Co/Fe@C‐8). This study can provide a systematic guidance to the utilization of high‐efficiently bimetallic catalysts for higher hydrocarbon formation with high yield from CO 2 .
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