康振辉教授课题组在ACS Catalysis上发表文章

康振辉教授课题组在ACS Catalysis上发表文章

题目：

Enhanced activity for CO₂ electroreduction on a highly active and stable ternary Au-CDots-C₃N₄ electrocatalyst

作者：

Siqi Zhao, Zeyuan Tang, Sijie Guo, Mumei Han, Cheng Zhu, Yunjie Zhou, Liang Bai, Jin Gao, Hui Huang, Youyong Li, Yang Liu, and Zhenhui Kang

单位：

Jiangsu Key Laboratory for Carbon Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, PR China.

摘要：

Electrochemical reduction of CO₂ to carbon-containing fuels possesses the potential to solve the environment issues caused by excess CO₂ in the atmosphere. Herein, we introduce a ternary Au-CDots-C₃N₄ electrocatalyst for efficiently reducing CO₂ to CO. The ternary catalyst exhibited significantly enhanced activity and stability for CO₂ electroreduction compared with pure Au NPs. The Au-CDots-C₃N₄ electrocatalyst demonstrates a high CO FE of ~79.8 % at -0.5 V, and a 2.8-fold enhancement of current density (with the Au loading only 4 wt %) at -1.0 V relative to pure Au NPs. The DFT calculations and experimental observations indicate that the high activity towards CO2RR originates from the synergetic effect between Au NPs, CDots and C₃N₄ substrate, and the capability of H⁺ and CO₂ adsorption from CDots. The long-term stability tests demonstrate the electrocatalyst can be used for over 8 hours without obvious deactivations and maintained its activity over 60 days under normal condition.

影响因子：

10.614

分区情况：

一区

链接：

http://pubs.acs.org/doi/pdf/10.1021/acscatal.7b01551