材料科学
可逆氢电极
电流密度
化学工程
吸附
无机化学
电化学
电解质
纳米棒
催化作用
电极
Boosting(机器学习)
电催化剂
法拉第效率
纳米技术
工作电极
物理化学
化学
物理
工程类
量子力学
生物化学
作者
Yao Song,Yi Wang,Jiaqi Shao,Ke Ye,Qi Wang,Qianqian Wang
标识
DOI:10.1021/acsami.1c15669
摘要
Carbon dioxide (CO2) electroreduction can offer a way of relieving environmental and energy issues. Gold and silver catalysts show considerable electrochemical performance for CO production; however, the electrochemical CO2 conversion to CO is still restricted by the Faradaic efficiency, current density, and stability over the catalysts. Non-noble metal (zinc) is considered as a promising catalyst for CO2 electroreduction because of its low cost. However, because of the electron-rich property of zinc, it has a weak adsorption capacity of intermediates, resulting in a poor CO2 electroreduction performance. In this work, ZnS nanoparticles are embedded onto the ZnO surface to construct a stable ZnS/ZnO interface structure. The ZnS/ZnO interface reaches a maximum current density of 327.2 ± 10.6 mA cm-2 with a CO Faradaic efficiency of 91.9 ± 0.6% at -0.73 V vs a reversible hydrogen electrode (RHE) and remains stable for 40 h at a current density of 115.7 ± 7.0 mA cm-2 with a CO Faradaic efficiency of 93.8 ± 3.7% at -0.56 V vs RHE.
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