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- W4225277271 endingPage "107315" @default.
- W4225277271 startingPage "107315" @default.
- W4225277271 abstract "Exploring efficient routes for the fabrication of promising transition metal phosphides electrocatalysts towards oxygen evolution reaction (OER) has become a top priority in the field of water-splitting technology. Herein, a cobalt phosphide (CoxP) electrocatalyst composed of high-density small Co2P/CoP nanoparticles homogeneously embedded in one-dimensional (1-D) carbon has been synthesized by using surface-engineered cobalt benzimidazole zeolitic imidazolate framework (ZIF-9) rods as a precursor. The surface engineering strategy employs melamine to modify ZIF-9 by constructing robust Co coordination sites on ZIF-9 surface through the coordination of Co with nitrogen donor sites in melamine. DFT calculations indicate that the surface engineering of ZIF-9 triggered by melamine occurs not only at coordinatively unsaturated Co sites but also at coordinatively saturated Co sites via a thermodynamically favored ligand exchange process between benzimidazole in ZIF-9 and melamine. Subsequent reaction with red phosphorus at high temperature affords a 1-D material having high-density of CoxP reactive sites and facilitated charge/mass transport, leading to an outstanding electrocatalytic activity for OER—even comparable to commercial RuO2—and excellent electrochemical durability. This scalable strategy involving surface engineering of MOFs represents a breakthrough in the synthesis of efficient OER electrocatalysts in water electrolyzer application." @default.
- W4225277271 created "2022-05-04" @default.
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- W4225277271 date "2022-07-01" @default.
- W4225277271 modified "2023-10-18" @default.
- W4225277271 title "Surface engineering of MOFs as a route to cobalt phosphide electrocatalysts for efficient oxygen evolution reaction" @default.
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- W4225277271 doi "https://doi.org/10.1016/j.nanoen.2022.107315" @default.
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