Nitrogen doped and carbon coated CoP hollow nanospheres with enhanced electrocatalytic activity towards the oxygen evolution reaction

Wang, Xiangwei; Zhai, Yunyun; Liu, Haiqing

doi:10.1039/d3nj00547j

Cited by 4 publications

References 54 publications

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Ruthenium Clusters Modification Carbon Layer‐Encapsulated NiCoP Nanoneedles as Advanced Electrocatalyst for Efficient Seawater Splitting Application

Liu,

Ning,

Hao

et al. 2024

ChemSusChem

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Developing efficient and durable electrocatalyst for seawater splitting is crucial in hydrogen production. Herein, a multi‐scale design strategy was employed to fabricate ruthenium clusters modification carbon layer‐encapsulated nickel‐cobalt‐phosphorus (Ru/C/NiCoP) nanoneedles electrocatalyst supported on nickel foam (NF). We demonstrated that Ru/C/NiCoP/NF exhibited exceptional oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) performances, with low overpotential, Tafel slope and superior stability. Furthermore, the electrocatalytic mechanism of Ru/C/NiCoP was elucidated through the combination of ex‐situ and in‐situ characterizations, along with comprehensive electrochemical tests. Strikingly, Ru clusters and the NiCoP with carbon layer engendered robust electronic interaction reaction, accelerated the charge transfer rate, provided more active sites, and enhanced intrinsic catalytic activity, thus substantially promoting the OER kinetics and HER reaction steps as well as stability. In addition, the two‐electrode system constructed with Ru/C/NiCoP/NF achieved current density of 10 mA cm−2 in both pure water and seawater at ultra‐low potential of 1.46/1.47 V, with Faraday efficiency close to 100 %. Even at higher current density of 100 mA cm−2, the required driving voltage remained low at 1.75/1.77 V, maintaining stable operation for 150 h, outperforming most reported non‐noble catalysts. This innovative strategy provides facile and versatile approach for developing advanced electrocatalysts in seawater electrolysis application.

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Ruthenium Clusters Modification Carbon Layer‐Encapsulated NiCoP Nanoneedles as Advanced Electrocatalyst for Efficient Seawater Splitting Application

Liu,

Ning,

Hao

et al. 2024

ChemSusChem

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Hollow-structured cobalt sulfide electrocatalyst for alkaline oxygen evolution reaction: Rational tuning of electronic structure using iron and fluorine dual-doping strategy

Kim,

Min,

Song

et al. 2024

Journal of Colloid and Interface Science

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Hollow-Structured Cobalt Sulfide Electrocatalyst for Alkaline Oxygen Evolution Reaction: Rational Tuning of Electronic Structure Using Iron and Fluorine Dual-Doping Strategy

Kim

Min

Song

et al. 2023

Preprint

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Nitrogen doped and carbon coated CoP hollow nanospheres with enhanced electrocatalytic activity towards the oxygen evolution reaction

Abstract: Oxygen evolution reaction (OER) is involved in various renewable energy systems, such as water-splitting cells and metal-air batteries. The cobalt phosphides nanomaterials have been reported as promising OER electrocatalysts. Herein,...

Cited by 4 publications

References 54 publications

Ruthenium Clusters Modification Carbon Layer‐Encapsulated NiCoP Nanoneedles as Advanced Electrocatalyst for Efficient Seawater Splitting Application

Ruthenium Clusters Modification Carbon Layer‐Encapsulated NiCoP Nanoneedles as Advanced Electrocatalyst for Efficient Seawater Splitting Application

Hollow-structured cobalt sulfide electrocatalyst for alkaline oxygen evolution reaction: Rational tuning of electronic structure using iron and fluorine dual-doping strategy

Hollow-Structured Cobalt Sulfide Electrocatalyst for Alkaline Oxygen Evolution Reaction: Rational Tuning of Electronic Structure Using Iron and Fluorine Dual-Doping Strategy

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