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• W4291036685 startingPage "2203710" @default.
• W4291036685 abstract "Developing FeOOH as a robust electrocatalyst for high output oxygen evolution reaction (OER) remains challenging due to its low conductivity and dissolvability in alkaline conditions. Herein, it is demonstrated that the robust and high output Zn doped NiOOH-FeOOH (Zn-Fex Ni(1-x) )OOH catalyst can be derived by electro-oxidation-induced reconstruction from the pre-electrocatalyst of Zn modified Ni metal/FeOOH film supported by nickel foam (NF). In situ Raman and ex situ characterizations elucidate that the pre-electrocatalyst undergoes dynamic reconstruction occurring on both the catalyst surface and underneath metal support during the OER process. That involves the Fe dissolution-redeposition and the merge of Zn doped FeOOH with in situ generated NiOOH from NF support and NiZn alloy nanoparticles. Benefiting from the Zn doping and the covalence interaction of FeOOH-NiOOH, the reconstructed electrode shows superior corrosion resistance, and enhanced catalytic activity as well as bonding force at the catalyst-support interface. Together with the feature of superaerophobic surface, the reconstructed electrode only requires an overpotential of 330 mV at a high-current-density of 1000 mA cm-2 and maintains 97% of its initial activity after 1000 h. This work provides an in-depth understanding of electrocatalyst reconstruction during the OER process, which facilitates the design of high-performance OER catalysts." @default.
• W4291036685 created "2022-08-13" @default.
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• W4291036685 date "2022-08-12" @default.
• W4291036685 modified "2023-10-15" @default.
• W4291036685 title "In Situ Reconstructed Zn doped Fe <i> _x </i> Ni ₍₁₋ <i> _x </i> ₎ OOH Catalyst for Efficient and Ultrastable Oxygen Evolution Reaction at High Current Densities" @default.
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• W4291036685 doi "https://doi.org/10.1002/smll.202203710" @default.
• W4291036685 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35961949" @default.
• W4291036685 hasPublicationYear "2022" @default.
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