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- W3045404961 abstract "Electrocatalytic water splitting in acidic media based on a proton-exchange membrane (PEM) is a promising technique for the large-scale production of hydrogen. However, developing electrocatalysts with high activity and excellent stability for an oxygen evolution reaction (OER) in acidic media is still a big challenge. Herein, a Cex-IrO2 catalyst supported on N-doped porous carbon (NPC) was developed via doping Ce into IrO2 nanoparticles. The Cex-IrO2 nanoparticles were uniformly distributed on NPC due to the high surface area. The optimized Ce0.2-IrO2@NPC delivers a low overpotential of 224 mV and excellent stability of 100 h in 0.5 M H2SO4 at 10 mA cm–2. Density functional theory (DFT) calculations indicated that the introduction of Ce could modify the electronic structure of IrO2, decreasing the energy barrier of the rate-determining step for OER and enhancing the electrochemical OER performance. Our work opens up a new way of developing anodic electrocatalysts, which can be stably applied in acidic media." @default.
- W3045404961 created "2020-07-29" @default.
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- W3045404961 date "2020-07-24" @default.
- W3045404961 modified "2023-10-17" @default.
- W3045404961 title "Ce-Doped IrO<sub>2</sub> Electrocatalysts with Enhanced Performance for Water Oxidation in Acidic Media" @default.
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- W3045404961 doi "https://doi.org/10.1021/acsami.0c00389" @default.
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