Matches in SemOpenAlex for { <https://semopenalex.org/work/W4381715724> ?p ?o ?g. }
- W4381715724 abstract "Abstract Designing and synthesizing advanced electrocatalysts with superior intrinsic activity toward hydrogen evolution reaction (HER) in alkaline media is critical for the hydrogen economy. Herein, a novel Ir@Rhene heterojunction electrocatalyst is synthesized via epitaxially confining ultrasmall and low‐coordinate Ir nanoclusters on the ultrathin Rh metallene accompanying the formation of Ir/IrO 2 Janus nanoparticles. The as‐prepared heterojunctions display outstanding alkaline HER activity, with an overpotential of only 17 mV at 10 mA cm −2 and an ultralow Tafel slope of 14.7 mV dec −1 . Both structural characterizations and theoretical calculations demonstrate that the Ir@Rhene heterointerfaces induce charge density redistribution, resulting in the increment of the electron density around the O atoms in the IrO 2 site and thus delivering much lower water dissociation energy. In addition, the dual‐site synergetic effects between IrO 2 and Ir/Rh interface trigger and improve the interfacial hydrogen spillover, thereby subtly avoiding the steric blocking of the active site and eventually accelerating the alkaline HER kinetics." @default.
- W4381715724 created "2023-06-24" @default.
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- W4381715724 date "2023-06-23" @default.
- W4381715724 modified "2023-10-08" @default.
- W4381715724 title "Modulating Water Splitting Kinetics via Charge Transfer and Interfacial Hydrogen Spillover Effect for Robust Hydrogen Evolution Catalysis in Alkaline Media" @default.
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- W4381715724 doi "https://doi.org/10.1002/advs.202302358" @default.
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