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- W3173745326 endingPage "120484" @default.
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- W3173745326 abstract "The development of crystalline-amorphous phase for oxygen-evolving reaction (OER) in water splitting is lagging, and the underlying catalysis mechanism is still unknown. Here, we can facilely construct electrochemistry-induced crystalline-amorphous phase in hybrid La0.33SrCo0.5Fe0.5Ox (H-LSCF) nanofibers based on the behavior of high-valence cubic perovskites and Ruddlesden-Popper perovskites after the OER, where such unique combination can be artificially modulated. This nano-sized combination surpasses its pure-phase counterparts and exhibits ultra-low overpotentials of 260 mV and 240 mV at 10 mA cm−2 in 0.1 M and 1 M KOH, respectively, which can be ascribed to their favorable solid-liquid contact, higher Co valence and stronger Co-O covalency to accelerate OER electron transport. The beneficial changes in various surface properties of H-LSCF ensure its stability for 80 h and 60 h in 0.1 M and 1 M KOH, respectively. In-situ 18O isotope-labelled experiments directly reveal that such combination can trigger exceptional lattice-oxygen activation mechanism." @default.
- W3173745326 created "2021-07-05" @default.
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- W3173745326 date "2021-11-01" @default.
- W3173745326 modified "2023-10-17" @default.
- W3173745326 title "Exceptional lattice-oxygen participation on artificially controllable electrochemistry-induced crystalline-amorphous phase to boost oxygen-evolving performance" @default.
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- W3173745326 doi "https://doi.org/10.1016/j.apcatb.2021.120484" @default.
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