电催化剂
电化学
丙醇
催化作用
法拉第效率
选择性
化学工程
正丙醇
材料科学
化学
联轴节(管道)
电极
无机化学
物理化学
甲醇
有机化学
工程类
冶金
作者
Renjie Zhang,Jianling Zhang,Sha Wang,Zhonghao Tan,Yisen Yang,Yi Song,Meiling Li,Yingzhe Zhao,Hao Wang,Buxing Han,Ran Duan
标识
DOI:10.1002/anie.202405733
摘要
n‐propanol is an important pharmaceutical and pesticide intermediate. To produce n‐propanol by electrochemical reduction of CO2 is a promising way, but is largely restricted by the very low selectivity and activity. How to promote the coupling of *C1 and *C2 intermediates to form the *C3 intermediate for n‐propanol formation is challenging. Here, we propose the construction of bicontinuous structure of Cu2O/Cu electrocatalyst, which consists of ultra‐small Cu2O nanodomains, Cu nanodomains and large amounts of grain boundaries between Cu2O and Cu nanodomains. The n‐propanol current density is as high as 101.6 mA cm−2 at the applied potential of −1.1 V vs. reversible hydrogen electrode in flow cell, with the Faradaic efficiency up to 12.1%. Moreover, the catalyst keeps relatively stable during electrochemical CO2 reduction process. Experimental studies and theoretical calculations reveal that the bicontinuous structure of Cu2O/Cu can facilitate the *CO formation, *CO‐*CO coupling and *CO‐*OCCO coupling for the final generation of n‐propanol.
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