催化作用
法拉第效率
甲醇
吸附
电化学
化学
氧气
无机化学
可逆氢电极
电催化剂
碳化物
过渡金属
碳纤维
二氧化碳
光化学
电极
材料科学
工作电极
有机化学
复合数
物理化学
复合材料
作者
Gong Zhang,Tuo Wang,Mengmeng Zhang,Lulu Li,Dongfang Cheng,Shiyu Zhen,Yongtao Wang,Jian Qin,Zhi‐Jian Zhao,Jinlong Gong
标识
DOI:10.1038/s41467-022-35450-8
摘要
Abstract The reduction of carbon dioxide using electrochemical cells is an appealing technology to store renewable electricity in a chemical form. The preferential adsorption of oxygen over carbon atoms of intermediates could improve the methanol selectivity due to the retention of C–O bond. However, the adsorbent-surface interaction is mainly related to the d states of transition metals in catalysts, thus it is difficult to promote the formation of oxygen-bound intermediates without affecting the carbon affinity. This paper describes the construction of a molybdenum-based metal carbide catalyst that promotes the formation and adsorption of oxygen-bound intermediates, where the sp states in catalyst are enabled to participate in the bonding of intermediates. A high Faradaic efficiency of 80.4% for methanol is achieved at −1.1 V vs. the standard hydrogen electrode.
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