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Volume 15
Issue 2
10.3390/catal15020136
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Regulation of Ni3S2@NiS Heterostructure Grown on Industrial Nickel Net for Improved Electrocatalytic Hydrogen Evolution

by
Zihan Su
1,
Dinghan Liu
1,
Yuhang Li
2,
Xiaoyi Li
2,
Dewei Chu
3,
Liyun Cao
2,
Jianfeng Huang
2,* and
Liangliang Feng
2,4,*
1
School of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi’an 710021, China
2
School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
3
School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
4
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
*
Authors to whom correspondence should be addressed.
Catalysts 2025, 15(2), 136; https://doi.org/10.3390/catal15020136
Submission received: 9 December 2024 / Revised: 19 January 2025 / Accepted: 28 January 2025 / Published: 1 February 2025
(This article belongs to the Special Issue Tailored Nanosystems and Nanocatalysts for Photo-/Electrocatalytic Applications, 2nd Edition)
Versions Notes

Abstract

A novel all-in-one catalytic electrode containing a Ni3S2@NiS heterostructure (Ni3S2@NiS/Ni-Net) was in situ synthesized on an industrial nickel net (Ni-Net) using a one-step solvothermal method, in which ethanol was the solvent and thioacetamide was the sulfur source, respectively. The effects of the addition amount of the sulfur source on the composition, morphology, and electronic structure of the Ni3S2@NiS heterostructures and their electrocatalytic hydrogen evolution reaction (HER) activities were investigated. When 2 mmol of sulfur source was introduced, the prepared Ni3S2@NiS/Ni-Net electrode with a nanorod-like structure required overpotentials of 207 and 322 mV to drive the current densities of 100 and 500 mA/cm2, respectively, in 1 M KOH solution, and only needed the overpotential of 429 mV to deliver 1000 mA/cm2. Meanwhile, the Ni3S2@NiS/Ni-Net electrode can operate stably at a high current density of 90 mA/cm2 under harsh alkaline conditions for at least 100 h. The results show that the Ni3S2@NiS/Ni-Net electrode has high activity and stable HER performance at a high current density, which provides a new idea for the development of high-efficiency electrodes for industrial alkaline hydrogen production.
Keywords: electrocatalyst; metal sulfide; heterostructure; hydrogen evolution reaction electrocatalyst; metal sulfide; heterostructure; hydrogen evolution reaction

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MDPI and ACS Style

Su, Z.; Liu, D.; Li, Y.; Li, X.; Chu, D.; Cao, L.; Huang, J.; Feng, L. Regulation of Ni3S2@NiS Heterostructure Grown on Industrial Nickel Net for Improved Electrocatalytic Hydrogen Evolution. Catalysts 2025, 15, 136. https://doi.org/10.3390/catal15020136

AMA Style

Su Z, Liu D, Li Y, Li X, Chu D, Cao L, Huang J, Feng L. Regulation of Ni3S2@NiS Heterostructure Grown on Industrial Nickel Net for Improved Electrocatalytic Hydrogen Evolution. Catalysts. 2025; 15(2):136. https://doi.org/10.3390/catal15020136

Chicago/Turabian Style

Su, Zihan, Dinghan Liu, Yuhang Li, Xiaoyi Li, Dewei Chu, Liyun Cao, Jianfeng Huang, and Liangliang Feng. 2025. "Regulation of Ni3S2@NiS Heterostructure Grown on Industrial Nickel Net for Improved Electrocatalytic Hydrogen Evolution" Catalysts 15, no. 2: 136. https://doi.org/10.3390/catal15020136

APA Style

Su, Z., Liu, D., Li, Y., Li, X., Chu, D., Cao, L., Huang, J., & Feng, L. (2025). Regulation of Ni3S2@NiS Heterostructure Grown on Industrial Nickel Net for Improved Electrocatalytic Hydrogen Evolution. Catalysts, 15(2), 136. https://doi.org/10.3390/catal15020136

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