Hydrogen Spillover Boosted Hydrogen Evolution Electrocatalysis over Pd@CoP in Alkaline Seawater DOI
Xiaoyan Wang, Yuxuan He, Quan‐Zhi Zhang

и другие.

ACS Materials Letters, Год журнала: 2024, Номер 6(9), С. 3970 - 3976

Опубликована: Июль 29, 2024

Developing efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) is crucial to achieve effective electrolytic production from seawater. Hydrogen spillover enhances catalytic performance by facilitating migration of species between different sites, improving efficiency kinetics in HER. Herein, we report hydrothermal-phosphatization-immersion synthesis Pd-decorated CoP nanoneedle arrays on nickel foam (Pd@CoP/NF) as a highly active HER electrocatalyst toward alkaline seawater reduction. In situ electrochemical impedance spectroscopy kinetic isotope effects reveal Pd@CoP/NF's extensive adsorption enhanced transfer rates. seawater, such Pd@CoP/NF exhibits outstanding with low overpotential 249 mV at current density 1000 mA cm–2 long-term stability 500 h.

Язык: Английский

Hydrogen Spillover Boosted Hydrogen Evolution Electrocatalysis over Pd@CoP in Alkaline Seawater DOI
Xiaoyan Wang, Yuxuan He, Quan‐Zhi Zhang

и другие.

ACS Materials Letters, Год журнала: 2024, Номер 6(9), С. 3970 - 3976

Опубликована: Июль 29, 2024

Developing efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) is crucial to achieve effective electrolytic production from seawater. Hydrogen spillover enhances catalytic performance by facilitating migration of species between different sites, improving efficiency kinetics in HER. Herein, we report hydrothermal-phosphatization-immersion synthesis Pd-decorated CoP nanoneedle arrays on nickel foam (Pd@CoP/NF) as a highly active HER electrocatalyst toward alkaline seawater reduction. In situ electrochemical impedance spectroscopy kinetic isotope effects reveal Pd@CoP/NF's extensive adsorption enhanced transfer rates. seawater, such Pd@CoP/NF exhibits outstanding with low overpotential 249 mV at current density 1000 mA cm–2 long-term stability 500 h.

Язык: Английский

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