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- W4308393769 abstract "Improving the platinum (Pt) mass activity for low-cost electrochemical hydrogen evolution is an important and arduous task. Here, a selective etching-reducing fluidized bed reactor technique is reported to create Ti vacancies and firmly anchor single Pt atoms on the active {100} facets of titanium carbide (TiC) to increase the Pt utilization efficiency and improve catalytic activity significantly by a synergistic effect between Ti vacancies and Pt atoms. The generated Ti vacancies are negatively charged and stabilize Pt atoms by forming covalent PtC bonds, showing excellent long-term durability. Pt single atoms (ultralow load of 1.2 µg cm−2) on the defective TiC {100} show remarkable activity (24.9 mV at 10 mA cm−2) and a mass activity (49.69 A mg−1) ≈190 times that of the state-of-the-art PtC catalyst and nearly double the previously reported best values. The developed cation defect engineering exhibits excellent potential for fabricating next-generation advanced single-atom catalysts for large-scale hydrogen evolution at a low cost." @default.
- W4308393769 created "2022-11-11" @default.
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- W4308393769 date "2022-11-07" @default.
- W4308393769 modified "2023-10-14" @default.
- W4308393769 title "Ultrahigh Mass Activity for the Hydrogen Evolution Reaction by Anchoring Platinum Single Atoms on Active {100} Facets of TiC via Cation Defect Engineering" @default.
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- W4308393769 doi "https://doi.org/10.1002/adfm.202210665" @default.
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