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Methanol synthesis at a wide range of H2/CO2 ratios over Rh‐In bimetallic catalyst

DOI: 10.1002/anie.202000841 DOI Help

Authors: Molly Meng-jung Li (University of Oxford) , Hanbo Zou (Guangzhou University) , Jianwei Zheng (University of Oxford) , Tai-sing Wu (National Tsing Hua University) , Ting-shan Chan (National Synchrotron Radiation Research Center) , Yun-liang Soo (National Tsing Hua University) , Xin-ping Wu (East China University of Science and Technology) , Xueqing Gong (East China University of Science and Technology) , Tianyi Chen (University of Oxford) , Kanak Roy (Diamond Light Source) , Georg Held (Diamond Light Source) , Edman Shik Chi Tsang (University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Angewandte Chemie International Edition

State: Published (Approved)
Published: May 2020

Abstract: Recent years have seen an increasing interest in capturing hydrogen generated from renewables with CO 2 to produce methanol. However, renewable hydrogen production is currently expensive and in limited quantity as compared to CO 2 . Excess CO 2 and limited H 2 in the feedstock gas mixture is not favourable for the CO 2 hydrogenation to methanol reaction, which causes low activity and poor methanol selectivity. Here we report a new class of Rh‐In catalysts with optimal adsorption property to the intermediates of methanol production. The Rh‐In catalyst can effectively catalyse methanol synthesis but inhibit reverse water‐gas shift reaction under H 2 ‐deficient gas flow and shows the best competitive methanol productivity under industrially applicable conditions in comparison with the literature reported values. This work demonstrates a strong potential of Rh‐In bimetallic composition, from which a convenient methanol synthesis based on flexible feedstock compositions (e.g. H 2 /CO 2 from biomass derivatives) with lower energy cost can be established.

Journal Keywords: carbon dioxide; Hydrogenation; methanol synthesis; low H2/CO2; Rh-In Bimetallic catalyst

Subject Areas: Chemistry

Instruments: B07-C-Versatile Soft X-ray beamline: Ambient Pressure XPS and NEXAFS

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