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 AuNPs. The Au-CDots-C₃N₄ electrocatalyst demonstrates a high CO FE of ~79.8% at -0.5V, and a 2.8-fold enhancement of current density (with the Au loading only 4 wt%) at -1.0V 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

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