Hierarchical (Ni,Co)0.85Se sheets for efficient oxygen evolution reaction electrocatalysis: a combined approach of fabrication control and mechanistic understanding

Muhammad Sohail Riaz; Qi Huang; Jingjing Duan; Sheng Chen; Fuqiang Huang; Pau Farras

doi:10.1039/D4CC04285A

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Hierarchical (Ni,Co)_0.85Se sheets for efficient oxygen evolution reaction electrocatalysis: a combined approach of fabrication control and mechanistic understanding†

Muhammad Sohail Riaz,

‡^a Qi Huang,‡^c Jingjing Duan,

^c Sheng Chen,

*^c Fuqiang Huang*^b and Pau Farras

*^a

Author affiliations

* Corresponding authors

^a School of Biological and Chemical Sciences, Energy Research Centre, Ryan Institute, University of Galway, H91 CF50 Galway, Ireland
E-mail: pau.farras@universityofgalway.ie

^b State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
E-mail: huangfq@sjtu.edu.cn

^c Key Laboratory for Soft Chemistry and Functional Materials (Ministry of Education), School of Chemical Engineering, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, China
E-mail: sheng.chen@njust.edu.cn

Abstract

We present a fabrication process for hierarchical (Ni,Co)_0.85Se sheets, achieving efficient oxygen evolution reaction (OER) activity with a 10 mA cm⁻² current density at an overpotential of 290 mV. Porous architecture and doping improve kinetics, supported by DFT calculations. This approach offers insights into designing stable, high-performance OER catalysts.

This article is part of the themed collection: ChemComm 60th Anniversary Collection

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Article information

DOI: https://doi.org/10.1039/D4CC04285A
Article type: Communication
Submitted: 22 aug 2024
Accepted: 25 sep 2024
First published: 25 sep 2024
This article is Open Access

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Chem. Commun., 2024, Advance Article

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Hierarchical (Ni,Co)_0.85Se sheets for efficient oxygen evolution reaction electrocatalysis: a combined approach of fabrication control and mechanistic understanding

M. S. Riaz, Q. Huang, J. Duan, S. Chen, F. Huang and P. Farras, Chem. Commun., 2024, Advance Article , DOI: 10.1039/D4CC04285A

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