There is increasing interest in capturing H₂ generated from renewables with CO₂ to produce methanol. However, renewable hydrogen production is expensive and in limited quantity compared to CO₂. Excess CO₂ and limited H₂ in the feedstock gas is not favorable for CO₂ 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 H₂‐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 H₂/CO₂ from biomass derivatives) with lower energy cost can be established.

中文翻译：

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Rh-In双金属催化剂在宽H2 / CO2比范围内合成甲醇。

有捕捉ħ越来越大的兴趣₂从与可再生能源CO产生₂以生产甲醇。然而，与CO ₂相比，可再生氢生产昂贵且数量有限。原料气体中过量的CO ₂和有限的H ₂不利于CO ₂加氢成甲醇，导致活性低和甲醇选择性差。现在，提出了一类对甲醇生产中间体具有最佳吸附性能的Rh-In催化剂。Rh-In催化剂可有效催化甲醇合成，但可抑制H ₂下的逆水煤气变换反应-气体流量不足，与报告值相比，在工业适用条件下显示出最佳的竞争性甲醇生产率。这项工作证明了Rh-In双金属组合物的巨大潜力，由此可以建立基于柔性原料组合物（例如来自生物质衍生物的H ₂ / CO ₂）且能耗较低的便利的甲醇合成方法。