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- W3129506322 abstract "Abstract Heteroatom-doped carbon is a type of promising support for catalytically active metal nanoparticles as it offers abundant anchoring sites to facilitate the nucleation and growth of the nanoparticles, and to strengthen their attachment and more importantly, to enhance their intrinsic catalytic activity via support-metal electronic interaction. In this work, graphene sheets were doped with abundant N atoms via radio-frequency N2 plasma process and used as unique support to load ultrasmall iridium nanoparticles. As-synthesized Ir@N-G-600 shows excellent activity and stability toward HER and OER in both acidic and alkaline media. At much lower precious metal loading, it is superior to commercial Pt/C, RuO2 and Ir/C catalysts in terms of HER and OER activity, respectively. As a bifunctional electrocatalyst, Ir@N-G-600 enables efficient overall water splitting in acid and alkaline solutions. The enhanced electrocatalytic activity of Ir@N-G-600 is found to be tightly associated with the strong coordination between Ir atoms and N dopants, which enriches the electron density of Ir atoms to form an optimal electronic configuration for HER and OER processes." @default.
- W3129506322 created "2021-03-01" @default.
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- W3129506322 date "2021-07-01" @default.
- W3129506322 modified "2023-10-16" @default.
- W3129506322 title "Electronic interaction boosted electrocatalysis of iridium nanoparticles on nitrogen-doped graphene for efficient overall water splitting in acidic and alkaline media" @default.
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- W3129506322 doi "https://doi.org/10.1016/j.cej.2021.129034" @default.
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