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- W4308484768 abstract "Composition is the key to optimizing the electroactivity of the alloy-based electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Herein, a library of surface-oxidized iron–cobalt–nickel-based (FeCoNi-based) alloys, FeCoNi and FeCoNi/OH, with continuous variable compositions are built as HER and OER electrocatalysts. The FeCoNi alloys with a low content of Fe display higher HER intrinsic activity, while the alloys with low Co content exhibit higher OER activity. Because the electrochemical specific area is evidently increasing with the addition of Fe and Co, the Fe6Co4Ni0 exhibits the outstanding HER activity and stability. Benefiting from the synergistic effect, the alloys’ HER activity for most compositions is enhanced by the surface hydroxides. However, the surface-oxidized hydroxides barely affect OER activity for most compositions of the alloys. After a year of storage, the FeCoNi and FeCoNi/OH electrodes exhibit high stability for HER but not for OER. These trends may help to exploit higher activity electrocatalysts for hydrogen production by water electrolysis." @default.
- W4308484768 created "2022-11-12" @default.
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- W4308484768 date "2022-11-02" @default.
- W4308484768 modified "2023-10-16" @default.
- W4308484768 title "Surface-Oxidized Iron–Cobalt–Nickel Alloy with Continuous Variable Composition for Hydrogen and Oxygen Evolution Reaction" @default.
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- W4308484768 doi "https://doi.org/10.1021/acssuschemeng.2c04892" @default.
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