Confined synthesis of edge-rich V-doped MoSe<sub>2</sub> nanosheets on carbon black for advanced hydrogen evolution reaction

Ren, Xianpei; Wu, Fei; Wang, Yonghua; Ou, Quanhong; Li, Fei

doi:10.1039/d4nj00032c

New J. Chem.

2024

DOI: 10.1039/d4nj00032c

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Confined synthesis of edge-rich V-doped MoSe₂ nanosheets on carbon black for advanced hydrogen evolution reaction

Xianpei Ren,

Fei Wu,

Yonghua Wang

et al.

Abstract: MoSe2 as one graphene-like 2D transition metal selenide has attracted great attention. However, its application for the hydrogen evolution reaction (HER) is still restricted by the poor electrical conductivity and...

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Extraordinary Hydrogen Evolution and Oxygen Evolution Reaction Activity From PPy@FeCo-LDH/NF Bifunctional Electrocatalyst in Alkaline Solution

Zhang,

Cui,

et al. 2024

J. Electrochem. Soc.

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Alkaline water electrolysis is a promising technique for the production of hydrogen and oxygen. Nevertheless, the development of low-cost, high-activity metal-based electrocatalysts that can effectively catalyze the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) remains a significant challenge. Herein, we polymerized Polypyrrole (PPy) with FeCo layered double metal hydroxide grown in situ on nickel foam (NF) (FeCo-LDH/NF) by electrochemical polymerization to acquire composite material PPy@FeCo-LDH/NF. As a promising electrocatalyst with dual functionality for the HER and OER, the HER overpotential of PPy@FeCo-LDH/NF was 153 mV, and the OER overpotential was 245 mV at a current density of 10 mA·cm−2. It was because that PPy increased the number of active adsorption sites, which in turn regulated the ion transfer rate between the electrolyte and the prepared catalyst. At the same time, after 24 h of stability testing, the HER and OER capacitance retention rates were 96.7% and 97.1%, respectively.

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Extraordinary Hydrogen Evolution and Oxygen Evolution Reaction Activity From PPy@FeCo-LDH/NF Bifunctional Electrocatalyst in Alkaline Solution

Zhang,

Cui,

et al. 2024

J. Electrochem. Soc.

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show abstract

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Confined synthesis of edge-rich V-doped MoSe₂ nanosheets on carbon black for advanced hydrogen evolution reaction

Abstract: MoSe2 as one graphene-like 2D transition metal selenide has attracted great attention. However, its application for the hydrogen evolution reaction (HER) is still restricted by the poor electrical conductivity and...

Cited by 1 publication

References 46 publications

Extraordinary Hydrogen Evolution and Oxygen Evolution Reaction Activity From PPy@FeCo-LDH/NF Bifunctional Electrocatalyst in Alkaline Solution

Extraordinary Hydrogen Evolution and Oxygen Evolution Reaction Activity From PPy@FeCo-LDH/NF Bifunctional Electrocatalyst in Alkaline Solution

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Confined synthesis of edge-rich V-doped MoSe2 nanosheets on carbon black for advanced hydrogen evolution reaction

Abstract: MoSe2 as one graphene-like 2D transition metal selenide has attracted great attention. However, its application for the hydrogen evolution reaction (HER) is still restricted by the poor electrical conductivity and...

Cited by 1 publication

References 46 publications

Extraordinary Hydrogen Evolution and Oxygen Evolution Reaction Activity From PPy@FeCo-LDH/NF Bifunctional Electrocatalyst in Alkaline Solution

Extraordinary Hydrogen Evolution and Oxygen Evolution Reaction Activity From PPy@FeCo-LDH/NF Bifunctional Electrocatalyst in Alkaline Solution

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Product

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Confined synthesis of edge-rich V-doped MoSe₂ nanosheets on carbon black for advanced hydrogen evolution reaction