催化作用
电化学
煅烧
抗坏血酸
材料科学
化学工程
基质(水族馆)
氧化还原
可再生能源
无机化学
化学
电极
冶金
有机化学
物理化学
工程类
海洋学
食品科学
电气工程
地质学
作者
Jinyun Xu,Ming Li,Liping Zhao,Guoqiang Zhong,Yu Zhang,Ziqi Zhang,Yu Sun,Xudong Hu,Zhe Peng,Yicong Wang,Chunming Zheng,Xiaohong Sun
摘要
An electrochemical CO2 reduction reaction (CO2RR) is an effective way to reduce greenhouse gases by converting CO2 into high-value-added chemical products using electricity generated from renewable energy. In this paper, a Cu2O spherical catalyst was prepared by ascorbic acid reduction. The precipitated Cu-Ag spherical catalyst (P-CuO-Ag) was successfully prepared by calcining Cu2O-Ag with the introduction of an Ag component as the substrate. During the electrochemical reduction of CO2, the FE of the P-CuO-Ag catalyst for C2H4 at a potential of −1.1 V vs. RHE was as high as 39.8%, which was nearly twice that of the CuO catalyst, while the local current density JC2H4 for C2H4 reached 6 mA cm−2. The incorporation of Ag gives the spherical CuO catalyst higher electrochemical activity and better kinetic performance than the catalyst without Ag.
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