我组高晋在ACS Sustainable Chem. Eng. 上发表论文

题目：

Highly Selective and Efficient Electroreduction of Carbon Dioxide toCarbon Monoxide with Phosphate Silver-Derived Coral-like Silver

作者：

Jin Gao, Cheng Zhu, Mengmeng Zhu, Yijun Fu, Hui Huang,* Yang Liu,* and Zhenhui Kang*

单位：

Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials &Devices, Soochow University, 199 Ren’ai Road, Suzhou, 215123, Jiangsu, People’s Republic of China

摘要：

Electrochemical reduction of carbon dioxide (CO₂RR) to useful chemicals and fuels is one of the promisingmethods to reduce the accumulated greenhouse gas in the atmosphere and simultaneously satisfy sustainable energy demands.Metallic Ag has been reported in numerous studies for its excellent properties in CO₂ reduction. However, most Ag catalystsrequire a large overpotential to realize high selectivity and the Faradaic efficiency (FE) is relatively low. Moreover, the syntheticmethods of efficient Ag catalysts are usually complicated and time-consuming. In this work, a phosphate silver-derived silver(PD-Ag) electrocatalyst was fabricated by a quick facile electroreduction method, showing superior performance for the

selective reduction of CO₂ to CO. The maximum FE of PD-Ag could reach 97.3% with a potential of −0.7 V vs RHE, and acurrent density of 2.93 mA cm⁻². It is demonstrated that a 19-fold increase of the electrochemically active surface area (ECSA)is obtained for PD-Ag compared to polycrystalline Ag (Ag foil). Furthermore, PD-Ag shows an excellent stability during a 10 helectrolysis with only 4% loss of the current. The enhancement of the electroactivity results from its coral-like surface, not onlyserving plenty of active sites, but also producing CO₂⁻ intermediate at a lower overpotential.

影响因子：

6.97

分区情况：

2区

链接：  

 https://pubs.acs.org/doi/pdf/10.1021/acssuschemeng.8b05776