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Updated: Feb 20, 2026
Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
Published on: February 10, 2023
Mixed-Metal-Organic Framework Self-Template Synthesis of Porous Hybrid Oxyphosphides for Efficient Oxygen Evolution
Dickson D Babu1, Yiyin Huang1, Ganesan Anandhababu1
1Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Yang Qiao West Road 155#, Fuzhou, Fujian 350002, P. R. China.
Abstract:
Developing an efficient, stable yet cost-effective electrocatalyst is the key link along the path to hydrogen fuels produced by water splitting. The current bottleneck in the water electrolysis technology is the sluggish oxygen-evolving reaction (OER) which is also central to the rechargeable metal-air batteries. Herein, we report a promising mixed-metal-organic framework (MMOF) self-template strategy to synthesize CoFe hybrid oxyphosphides with highly porous morphology. Aided by the porous hybrid bulk structure beneficial to fast-ion diffusion to abundant highly active sites, the as-synthesized Co3FePxO exhibited excellent electrocatalytic activity toward OER, with an overpotential of 291 mV at 10 mA cm-2 and a low Tafel slope of 85 mV dec-1. With the underpinnings of MMOF maintaining the structural rigidity and stability, the material also showed long life for OER without discernible activity decay.
