A highly efficient heterostructure nanorod bifunctional electrocatalyst for realizing enhanced overall water splitting at a large current density

Li, Derun; Wu, Shixin; Jiang, Tao; Huang, Shuangshuang; Wang, Zhaowu; Wu, Hengyi; Cai, Guangxu; Ren, Feng

doi:10.1039/d3ta03113f

Cited by 6 publications

References 49 publications

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Progress on the Design of Electrocatalysts for Large‐Current Hydrogen Production by Tuning Thermodynamic and Kinetic Factors

Li,

Feng,

Dai

et al. 2024

Adv Funct Materials

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Electrochemical water splitting to produce green hydrogen offers a promising technology for renewable energy conversion and storage, as well as realizing carbon neutrality. The efficiency, stability, and cost of electrocatalysts toward hydrogen evolution reaction (HER) and electrocatalytic overall water splitting (EOWS) at large current densities are essential for practical application. In this review, the key factors that determine the catalytic performance of electrocatalysts at large current densities are summarized from the angel of thermodynamic and kinetic correlation. The corresponding design strategies are presented. The electronic structure and density of active sites that affect the adsorption/desorption of intermediates are considered as the thermodynamic aspects, while charge transfer and mass transport capabilities closely associated with electrode resistance and intermediate diffusion are assigned as kinetic effects. Recent development of bifunctional and integrated electrocatalysts toward EOWS is also discussed in detail. Finally, the perspective and direction on the electrocatalytic water splitting under large current density are proposed. This comprehensive overview will offer profound insights and guidance for the continued advancement of this field.

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Progress on the Design of Electrocatalysts for Large‐Current Hydrogen Production by Tuning Thermodynamic and Kinetic Factors

Li,

Feng,

Dai

et al. 2024

Adv Funct Materials

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Recent Advantages on Mass Transfer Structure Construction in Transition Metal‐Based Cost‐Effective Catalyst Toward Alkaline Oxygen Evolution

Zhang,

et al. 2024

ChemCatChem

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The electrochemical oxygen evolution reaction (OER) can be combined with various reactions to fabricate electrochemical energy conversion and storage devices while the slow kinetics and poor mass transfer capability at high current densities are the key constraints to its large‐scale application. Therefore, this review primarily focuses on design and optimization of mass transfer structures of TM‐metal‐based OER catalysts. Nanostructuring, porous design, and the creation of hierarchical architectures have been applied during catalyst synthesis to enhance the surface area and accessibility, thereby improving mass transfer and catalytic OER efficiency. Strategies including doping, substrate invitation, soft/hard templating have been utilized to accelerate mass transfer as well as the ion/electron conduction efficiency for the overall improvement of OER performance of the catalysts. These developments underline the critical role of advanced material design in achieving high‐performance OER catalysts and highlight the potential of TM‐based materials in cost‐effective and scalable applications.

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Low Rh doping accelerated HER/OER bifunctional catalytic activities of nanoflower-like Ni-Co sulfide for greatly boosting overall water splitting

Gan,

Jiang,

Fang

et al. 2025

Journal of Colloid and Interface Science

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A highly efficient heterostructure nanorod bifunctional electrocatalyst for realizing enhanced overall water splitting at a large current density

Abstract: Exploring efficient, low cost and stable electrocatalysts working at large current densities is crucial for upgrading the current industrial electrochemical water splitting. Herein, a novel FeS2/Fe-Ni3S2 heterostructure was successfully prepared...

Cited by 6 publications

References 49 publications

Progress on the Design of Electrocatalysts for Large‐Current Hydrogen Production by Tuning Thermodynamic and Kinetic Factors

Progress on the Design of Electrocatalysts for Large‐Current Hydrogen Production by Tuning Thermodynamic and Kinetic Factors

Recent Advantages on Mass Transfer Structure Construction in Transition Metal‐Based Cost‐Effective Catalyst Toward Alkaline Oxygen Evolution

Low Rh doping accelerated HER/OER bifunctional catalytic activities of nanoflower-like Ni-Co sulfide for greatly boosting overall water splitting

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