Cationic Copper Species Stabilized by Zinc during the Electrocatalytic Reduction of CO2 Revealed by In Situ X-Ray Spectroscopy
學年 111
學期 2
出版（發表）日期 2023-03-30
作品名稱 Cationic Copper Species Stabilized by Zinc during the Electrocatalytic Reduction of CO2 Revealed by In Situ X-Ray Spectroscopy
作品名稱（其他語言）
著者 Juan-Jesús Velasco-Vélez, Jeffrey Poon, Dunfeng Gao, Cheng-Hao Chuang, Arno Bergmann, Travis E. Jones, Shu-Chih Haw, Jin-Ming Chen, Emilia Carbonio, Rik V. Mom, Danail Ivanov, Rosa Arrigo, Beatriz Roldan Cuenya, Axel Knop-Gericke, Robert Schlögl
單位
出版者
著錄名稱、卷期、頁數 Advanced Sustainable Systems 7(5), 2200453
摘要 Advanced in situ X-ray absorption spectroscopy characterization of electrochemically co-electrodeposited bi-element copper alloy electrodes shows that zinc yields the formation of a stable cationic Cu species during the electroreduction of CO2 at high cathodic polarization. In contrast, the formation/stabilization of cationic Cu species in copper oxides, or doping Cu with another element, like Ni, is not possible. It is found that the pure and mixed Cu:Zn electrodes behave similarly in term of electrocatalytic selectivity to multi-carbon products. At higher Zn concentrations the electrode behaves like the pure Zn catalyst, which indicates that the Cu cationic species do not have a significant influence on the selectivity to multi-carbon products. It is found that in the non-monotonically distribution of products is dominated in term of surface energy in which copper prefers the surface. Otherwise, this work highlights the importance of in situ characterization to uncover the mechanisms mediating the catalytic reactions in contrast to ex situ or post mortem analysis, which can be a source of misinterpretation.
關鍵字
語言 en
ISSN 2366-7486
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 DEU
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/125604 )