A hierarchical carbon foam-hosted Co2P nanoparticles monolithic electrode for ampere-level and super-durable electrocatalytic hydrogen production

Yaoyao Zhao; Zhengguo Zhang; Fang Wang; Shixiong Min

doi:10.1039/D3DT03951J

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A hierarchical carbon foam-hosted Co₂P nanoparticles monolithic electrode for ampere-level and super-durable electrocatalytic hydrogen production†

Yaoyao Zhao,^abc Zhengguo Zhang,*^abc Fang Wang^abc and Shixiong Min

*^abc

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, P. R. China
E-mail: sxmin@nun.edu.cn

^b Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, P. R. China
E-mail: zhangzhengguo1119@126.com

^c Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, P. R. China

Abstract

In this work, we develop a hierarchical carbon foam-based monolithic electrode (Co₂P@HCF) from Co²⁺-adsorbed polyvinyl alcohol (PVA) sponge via the successive carbonization and phosphorization. Owing to the 3D hierarchical porous structure, excellent electrolyte wettability, good mechanical strength, and intimate embedding of highly dispersed Co₂P nanoparticles, the Co₂P@HCF electrode delivers a high current density of 1.0 A cm⁻² for the hydrogen evolution reaction (HER) at ultralow overpotentials of 189.6 and 218.6 mV in 0.5 M H₂SO₄ and 1.0 M KOH solutions, respectively, with remarkable durability for 100 h.

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Article information

DOI: https://doi.org/10.1039/D3DT03951J
Article type: Communication
Submitted: 25 Nov 2023
Accepted: 17 Jan 2024
First published: 19 Jan 2024

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Dalton Trans., 2024,53, 2450-2455

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A hierarchical carbon foam-hosted Co₂P nanoparticles monolithic electrode for ampere-level and super-durable electrocatalytic hydrogen production

Y. Zhao, Z. Zhang, F. Wang and S. Min, Dalton Trans., 2024, 53, 2450 DOI: 10.1039/D3DT03951J

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