Three-dimensional porous NiCoP foam enabled high-performance overall seawater splitting at high current density

Li He; Zhengwei Cai; Dongdong Zheng; Ling Ouyang; Xun He; Jie Chen; Ye Li; Xiankun Guo; Qian Liu; Luming Li; Wei Chu; Shuyun Zhu; Xuping Sun; Bo Tang

doi:10.1039/D3TA07898A

Three-dimensional porous NiCoP foam enabled high-performance overall seawater splitting at high current density†

Li He,^a Zhengwei Cai,^b Dongdong Zheng,^b Ling Ouyang,^a Xun He,

^a Jie Chen,^a Ye Li,^a Xiankun Guo,^a Qian Liu,^c Luming Li,

^c Wei Chu,

^c Shuyun Zhu,

*^d Xuping Sun

*^ab and Bo Tang

*^be

Author affiliations

* Corresponding authors

^a Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
E-mail: xpsun@uestc.edu.cn, xpsun@sdnu.edu.cn

^b College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China
E-mail: tangb@sdnu.edu.cn

^c Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China

^d College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
E-mail: shuyunzhu1981@163.com

^e Laoshan Laboratory, Qingdao 266237, Shandong, China

Abstract

Developing high-performance bifunctional electrocatalysts for hydrogen and oxygen evolution reactions (HER and OER) is essential to future renewable energy systems. Herein, a three-dimensional (3D) porous NiCoP foam on Ni foam (NiCoP foam/NF) is designed and employed as an outstanding bifunctional electrocatalyst for overall seawater splitting, requiring only 328 mV and 356 mV overpotentials for the HER and OER, respectively, at an industrial-level current density of 1000 mA cm⁻². Moreover, the 3D NiCoP foam/NF-assembled two-electrode electrolyzer can operate at a low cell voltage of 1.97 V to obtain 1000 mA cm⁻² and present a stable response for over 300 h in alkaline seawater, underscoring its potential for sustainable energy applications.

This article is part of the themed collections: Journal of Materials Chemistry A HOT Papers and Frontiers in electrocatalysis for clean energy

Journal of Materials Chemistry A

Three-dimensional porous NiCoP foam enabled high-performance overall seawater splitting at high current density†

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Three-dimensional porous NiCoP foam enabled high-performance overall seawater splitting at high current density

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