Adv. Energy Mater.: Carbon Nanodot Surface Modifications Initiate Highly Efficient, Stable Catalysts for Both Oxygen Evolution and Reduction Reactions

Title：

Carbon Nanodot Surface Modifications Initiate Highly Efficient, Stable Catalysts for Both Oxygen Evolution and Reduction Reactions

Authors：

Juan Liu, Shunyan Zhao, Chuanxi Li, Manman Yang, Yanmei Yang, Yang Liu, Yeshayahu Lifshitz,* Shuit-Tong Lee,* and Zhenhui Kang*

Institutions：

Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University Suzhou 215123, China

Department of Materials Science and Engineering Technion, Israel Institute of Technology, Haifa 32000, Israel

Abstract：

Efficient, stable, and low-cost electrocatalysts for the oxygen evolution and reduction reactions (OER and ORR) are essential components of energy conversion. Although much progress has been achieved in the development of platinum-based electrocatalysts for ORR and iridium-based electrocatalysts for OER, they are still not yet viable for large-scale commercialization because of the high cost and scanty supply of the noble metals. Here, it is demonstrated that carbon nanodots surface-modified with either phosphorus or amidogen can respectively achieve electrocatalytic activity approaching that of the benchmark Pt/C and IrO₂ /C catalysts for ORR and OER. Furthermore, phosphorus (amidogen)-modified carbon nanodots with attached Au nanoparticles exhibit superior ORR (OER) activity better than commercial Pt/C (IrO₂/C) catalysts as well as excellent electrochemical stability under visible light.

IF：

16.146

Link：

http://onlinelibrary.wiley.com/doi/10.1002/aenm.201502039/abstract

Editor: Danting Xiang