Yanyan Liu1, Yihua Zhu, Jianhua Shen, Jianfei Huang, Xiaoling Yang, Chunzhong Li. 1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China. yhzhu@ecust.edu.cn czli@ecust.edu.cn.
Abstract
The design of earth-abundant, active and stable water splitting bifunctional catalysts that operate in the same media is crucial for large-scale water electrolysis. CoP nanoparticles anchored on N,P-dual-doped mesoporous graphene-like carbon (CoP@NPMG) acts as an outstanding bifunctional electrocatalyst for both the hydrogen evolution reaction and the oxygen evolution reaction over a wide pH range. The synthesis method of CoP@NPMG is template-free and simple, and all the precursors are easily obtained; both these factors contribute to the feasibility of practical large-scale fabrication. When employed as a bifunctional electrode, CoP@NPMG enables high-performance water splitting with a current density of 10 mA cm-2 at cell voltages of only 1.58 V and 1.74 V in 1 M KOH and 1 M PBS, respectively. In addition, CoP@NPMG displays excellent catalytic stability at all pH values.
The design of earth-abundant, active and stable water splitting bifunctional catalysts that opn>erate in the same media is crucial for large-scale pan class="Chemical">water electrolysis. CoP nanoparticles anchored on N,P-dual-doped mesoporousgraphene-like carbon (CoP@NPMG) acts as an outstanding bifunctional electrocatalyst for both the hydrogen evolution reaction and the oxygen evolution reaction over a wide pH range. The synthesis method of CoP@NPMG is template-free and simple, and all the precursors are easily obtained; both these factors contribute to the feasibility of practical large-scale fabrication. When employed as a bifunctional electrode, CoP@NPMG enables high-performance water splitting with a current density of 10 mA cm-2 at cell voltages of only 1.58 V and 1.74 V in 1 M KOH and 1 M PBS, respectively. In addition, CoP@NPMG displays excellent catalytic stability at all pH values.