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- W4304080444 endingPage "122065" @default.
- W4304080444 startingPage "122065" @default.
- W4304080444 abstract "The sluggish kinetics and high overpotential of oxygen evolution reaction (OER) at anode hinders water splitting large-scale application. Recently, an anode alternative strategy exhibits promising prospect of application to improve reaction kinetics and decrease overpotential. Here, single dispersed Ru-anchored porous Pt 3 Ni alloy (Ru 1 -Pt 3 Ni/NiF) were successfully synthesized via spontaneous galvanic reduction, over which highly selective electrooxidation of ethanol into acetate was realized. DFT calculations show that Ru modification introduced abundant active oxygen species (OH*), which not only enhanced the oxidation activity of ethanol, but also increased the selectivity for C2 oxidation pathway. Then a Ru 1 -Pt 3 Ni/NiF||Pt 3 Ni/NiF ethanol oxidation membrane-free cell was built to couple the ethanol electrooxidation with H 2 evolution, where the Faraday efficiency of H 2 production reaches 94% and the power consumption is 19.24 kWh kg H2 -1 . This work provides a cost-competitive and energy-saving strategy for high-purity H 2 generation, opening new opportunities for electric energy utilization from renewable sources. • Single-dispersed Ru anchored Pt 3 Ni alloys were synthesized via spontaneous galvanic reduction process. • Selective electrooxidation of ethanol to acetate was realized over Ru 1 -Pt 3 Ni/NiF. • DFT calculations revealed that Ru promoted the charge transfer and reduced the Gibbs free formation energy of OH*. • Membrane-free pure H 2 production with 19.24 kWh kg H2 -1 power consumption via coupling HER and ethanol selective electrooxidation." @default.
- W4304080444 created "2022-10-10" @default.
- W4304080444 creator A5004612818 @default.
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- W4304080444 date "2023-02-01" @default.
- W4304080444 modified "2023-10-09" @default.
- W4304080444 title "Membrane-free pure H2 production over single dispersed Ru-anchored Pt3Ni alloys via coupling ethanol selective electrooxidation" @default.
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- W4304080444 doi "https://doi.org/10.1016/j.apcatb.2022.122065" @default.
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