摘要
There is increasing interest in capturing H 2 generated from renewables with CO 2 to produce methanol. However, renewable hydrogen production is expensive and in limited quantity compared to CO 2 . Excess CO 2 and limited H 2 in the feedstock gas is not favorable for CO 2 hydrogenation to methanol, causing low activity and poor methanol selectivity. Now, a class of Rh-In catalysts with optimal adsorption properties to the intermediates of methanol production is presented. The Rh-In catalyst can effectively catalyze methanol synthesis but inhibit the 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 reported values. This work demonstrates a strong potential of Rh-In bimetallic composition, from which a convenient methanol synthesis based on flexible feedstock compositions (such as H 2 /CO 2 from biomass derivatives) with lower energy cost can be established.