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- W3154681166 abstract "As an alternative to the oxygen evolution reaction (OER) electrocatalyst developed by a complex bi- or multimetal ion with layered double hydroxide (LDH) structures, we design a simple, self-supported, and single-metal-ion OER electrocatalyst having lower overpotentials and high current densities in alkaline water electrolyzers. Here, β-like FeOOH nanosword structures encapsulated by reduced graphene oxide (rGO) were cost-effectively synthesized on formable Ni foam substrates as an efficient and highly durable OER catalyst. It is revealed that the rGO uniformly covered the β-like FeOOH nanoswords to form a porous network achieving a lower overpotential of only 210 mV at 10 mA cm–2 with a stable operation for more than 40 h in alkali media. Moreover, a high current density of ∼300 mA cm–2 was achieved at less than 1.8 V. In-depth physical and electrochemical analysis indicated that the intrinsic charge transfer through activated Ni-foam, β-like phase, and nanosword morphology was evidently beneficial for enhancing the OER activity of the bare FeOOH, and its encapsulation by rGO further improved the conductivity and long-life durability. Our integrated OER electrocatalyst developed by a simple method (repeated soaking and quenching process) will aid in scaling up β-like FeOOH nanoswords for preparing uniform and large-area electrodes for industrial purposes." @default.
- W3154681166 created "2021-04-26" @default.
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- W3154681166 date "2021-04-15" @default.
- W3154681166 modified "2023-10-17" @default.
- W3154681166 title "β-like FeOOH Nanoswords Activated by Ni Foam and Encapsulated by rGO toward High Current Densities, Durability, and Efficient Oxygen Evolution" @default.
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- W3154681166 doi "https://doi.org/10.1021/acsami.1c01428" @default.
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- W3154681166 hasPublicationYear "2021" @default.
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