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NiSe/Ni₃Se₂ on nickel foam as an ultra-high-rate HER electrocatalyst: common anion heterostructure with built-in electric field and efficient interfacial charge transfer.

ABSTRACT: One grand challenge in green hydrogen production is to design efficient HER electrocatalysts for high-rate alkaline water electrolysis. Nickel chalcogenide coatings on nickel foam (NF) are promising HER electrocatalysts, but their high-rate performances are yet to be improved. The current work reports a NiSe/Ni₃Se₂@NF for alkaline HER, which requires an overpotential of only 336 mV to achieve an ultra-high current density of 1250 mA cm^-2, outperforming commercial Pt/C. The low onset potential of NiSe/Ni₃Se₂@NF is attributed to its morphology, and high surface area, as well as multiple active sites and electronic structure modulation because of the heterostructure. While these features are well-known within the current knowledge framewo

SUBMITTER: Ma X

PROVIDER: S-EPMC9042723 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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NiSe/Ni₃Se₂ on nickel foam as an ultra-high-rate HER electrocatalyst: common anion heterostructure with built-in electric field and efficient interfacial charge transfer.

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NiSe/Ni3Se2 on nickel foam as an ultra-high-rate HER electrocatalyst: common anion heterostructure with built-in electric field and efficient interfacial charge transfer.

OmicsDI is part of the ELIXIR infrastructure

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NiSe/Ni₃Se₂ on nickel foam as an ultra-high-rate HER electrocatalyst: common anion heterostructure with built-in electric field and efficient interfacial charge transfer.