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Updated: Jan 16, 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
The design and construction of a Co(OH)2@NiFe-MIL/NFF heterostructure catalyst for efficient and ultrastable water
Xianyu Chu1, Li Jing1, Yixuan Cheng1
1Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education, Jilin Normal University, Changchun, 130103, P. R. China. chunboliu@jlnu.edu.cn.
Abstract:
Metal-organic frameworks (MOFs) are regarded as intriguing candidates for the oxygen evolution reaction (OER) in electrocatalytic water splitting due to their unique intrinsic features. However, the unsatisfactory catalytic activity and stability are the stumbling blocks to practical alkaline water electrolysis application. Herein, a facile strategy is deployed to fabricate a heterostructured electrocatalyst composed of Co(OH)2 nanosheets and an in situ produced bimetallic MOF (NiFe-MIL) using ferronickel foam (NFF) as both the metal source and the conductive substrate. The hybrid Co(OH)2@NiFe-MIL/NFF catalyst demonstrates superior OER electrocatalytic activity, achieving a low overpotential of 230 mV (at 10 mA cm-2), a minimal Tafel slope of 12.79 mV dec-1, and exceptional long-term stability. The exceptional catalytic activity and stability stem from the synergistic effect of the heterogeneous interfacial structure and multiple active sites. The work establishes a novel paradigm for designing advanced electrocatalysts through rational manipulation of the electronic structure.
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