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Updated: Aug 29, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Co9S8-Ni3S2@CoFe LDH/NF Heterostructure as an Efficient Electrocatalyst for Enhanced Oxygen Evolution Performance
Xinquan Zhao1, Shisheng Li1, Xinshu Zhang1
1College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, China.
Abstract:
Exploring efficient, stable, and earth-abundant electrocatalysts toward the oxygen evolution reaction (OER) is a central theme for realizing industrial application of water splitting. In this study, a 1D@2D heterostructure of Co9S8-Ni3S2@CoFe LDH/NF is constructed via hydrothermal and electrodeposition approaches, where ultrathin CoFe LDH nanosheets are interconnected and deposited onto Co9S8-Ni3S2 nanorod arrays. This 1D@2D microstructure benefits from the exposure of a large number of accessible reactive sites. The strong interaction between the sulfide hybrid and LDH material could modulate the electronic structure of Co9S8-Ni3S2@CoFe LDH and generate a high concentration of high-valence metal sites. As a result, the optimal catalyst exhibits superior OER performance with a low overpotential of 189 mV at 10 mA cm-2, a small Tafel slope of 30.22 mV dec-1, and good stability in alkaline solution. This work opens up a possibility for obtaining efficient and cost-effective electrocatalysts for clean energy production through water splitting.
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