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- W4221041056 abstract "Precise control is critically significant for synthesizing highly efficient bifunctional water splitting electrocatalyst. This study has developed a facile strategy for fabricating porous Ni-Co-Fe ternary metal phosphides nanobricks (denoted as Ni-Co-Fe-P NBs) with specified components and morphology. The optimized sample of Ni-Co-Fe-P NBs showed remarkable electrocatalytic performance in 1.0 M KOH. When served as bifunctional electrocatalyst for overall water splitting, the Ni-Co-Fe-P NBs required a low cell voltage of 1.46 V to achieve a current density of 10 mA cm −2 along with superior durability. Density functional theory (DFT) calculation revealed that the homogeneously distributed Ni and Fe can optimize ∆ G H * , and therefore enhance their HER activity. In the case of OER, introducing Ni, Fe and P can promote the formation of desired Co 4+ sites and stabilize O-containing intermediates (H*, OH*, OOH*) on the surface of the catalysts. • We succeeded in fabricating Ni-Co-Fe-P ternary metal phosphides nanobricks with homogeneously occurring Ni and Fe. • Catalytic activity was improved synergistically via electronic modulation and morphology processing. • DFT has been performed to unravel the mechanisms of catalysis. • The well-constructed Ni-Co-Fe-P nanobricks exhibit excellent HER and OER catalytic activity and stability at industrial-scale current densities (>500 mA cm -2 )." @default.
- W4221041056 created "2022-04-03" @default.
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- W4221041056 date "2022-08-01" @default.
- W4221041056 modified "2023-10-17" @default.
- W4221041056 title "Rational design of porous Ni-Co-Fe ternary metal phosphides nanobricks as bifunctional electrocatalysts for efficient overall water splitting" @default.
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- W4221041056 doi "https://doi.org/10.1016/j.apcatb.2022.121353" @default.
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