文献类型：期刊文献

中文题名：缺陷铜铋复合氧化物高效电催化二氧化碳还原制备甲酸

英文题名：Preparation of formic acid by efficient electrocatalytic carbon dioxide reduction with defective copper-bismuth composite oxides

作者：王镪[1];魏呵呵[1]

机构：[1]华东理工大学化学与分子工程学院,先进材料重点实验室,工业催化研究所,计算化学中心,上海200237

年份：2025

卷号：39

期号：2

起止页码：341

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：;EI(收录号：20252518646213);北大核心:【北大核心2023】；

基金：国家自然科学基金(22102057)。

语种：中文

中文关键词：电催化二氧化碳还原;甲酸;盐模板法;氧化铜;铋氧化物

外文关键词：electrocatalytic reduction of carbon dioxide;formic acid;salt template method;copper oxide;bismuth oxide

摘要：为提高电催化还原二氧化碳为甲酸的效率,并有效降低大气中二氧化碳浓度,采用盐模板法制备了一系列含不同铜铋比例的复合材料。通过引入氯化钠,促进了氧缺陷的形成,从而增强了催化剂的电化学性能。特别是Cu_(1)Bi_(18.2)O_(x)催化剂,在-1.0 V(相对于可逆氢电极,即vs.RHE)的电位下,展现出了高达99.4%的甲酸法拉第效率。此外,Cu_(1)Bi_(18.2)O_(x)催化剂还表现出较大的电化学活性面积和较低的电荷转移电阻,且在34 h连续运行后,甲酸的法拉第效率仍然能维持在95%以上。研究结果不仅为盐模板法在电催化剂制备过程提供了新的见解,也为电催化还原二氧化碳提供了一种高效的催化剂。
In order to improve electrocatalytic reduction efficiency of carbon dioxide to formic acid and mitigate atmospheric carbon dioxide concentration,a series of composites containing different ratios of copper-bismuth were prepared using the salt template method.The introduction of sodium chloride facilitated the formation of oxygen defects and enhanced the electrochemical performance of the catalysts.The Cu_(1)Bi_(18.2)O_(x)catalyst shows a formic acid Faradaic efficiency of 99.4%at-1.0 V vs.RHE.Additionally,Cu_(1)Bi_(18.2)O_(x)exhibits the largest electrochemical active surface area and reduced charge transfer resistance,and maintains a formic acid Faradaic efficiency above 95% after 34 hours of operation.This research provides new insights into the application of the salt-template method for catalyst preparation and offers an effective catalyst for the electrocatalytic reduction of carbon dioxide.