Citation

Ghafoor, Mehak and Aamir, Muhammad and Lee, It Ee and Wali, Qamar and Sheraz, Muhammad and Selvanathan, Vidhya and Alharbi, Hamad Fahad and Shahiduzzaman, Md. and Nunzi, Jean Michel and Taima, Tetsuya (2025) Partially amorphous iron-copper-nickel sulfides for robust bifunctional electrocatalysis. Scientific Reports, 15 (1). ISSN 2045-2322

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Abstract

Bifunctional electrocatalysts are in demand to pursue dual functions in applications like energy conversion and pollution treatment. In this study, we synthesize the iron-copper-nickel sulfide (FeCuNiS) catalysts with partial amorphous character via the hydrothermal method. The iron rich composition with optimal copper and nickel ratios exhibits robust performances on hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline conditions. The partial amorphous feature offers more active sites for reaction due to the partial disordered structure. The partially amorphous FeCuNiS exhibits lower overpotential for HER and OER at 50 mAcm−2. Moreover, all compositions were found to be electrocatalytically stable. The optimum design and synthesis strategy of the partially amorphous bifunctional electrocatalysts provided in this work will open pathways to advanced electrocatalysts for energy conversion applications.

Item Type:	Article
Uncontrolled Keywords:	Electrocatalysis
Subjects:	Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions:	Faculty of Artificial Intelligence & Engineering (FAIE)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	06 Feb 2026 09:13
Last Modified:	06 Feb 2026 09:13
URII:	http://shdl.mmu.edu.my/id/eprint/15217

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