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- W4386577807 abstract "The sluggish kinetics and high-power consumption of the oxygen evolution reaction (OER) are recognized as major barriers in electrocatalysis. Therefore, exploring cheap and highly-efficient OER electrocatalysts is highly desired for improving energy storage and conversion. Related Fe-based materials have been widely applied in OER electrocatalyst field due to their excellent OER activity. Herein, we adopt the vacuum annealing and electrochemical dealloying methods to produce a self-supporting np-Fe40Co40B20-800-5min catalyst enriched with nanocrystalline. The self-supporting np-Fe40Co40B20-800-5min catalyst exhibits superior OER performance with an overpotential of 315 mV at a current density of 10 mA cm−2 and a small Tafel slope of 26 mV dec−1. The overpotential of the np-Fe40Co40B20-800-5min catalyst is boosted by more than 20 percent over that obtained np-Fe40Co40B20 catalyst. The active intermediates were explored by in situ Raman under catalytic conditions. The in-depth mechanism research suggests that the nanocrystalline may serve as an advantageous electrocatalytic species in amorphous np-Fe40Co40B20-x-ymin catalyst. This study offers a novel approach to promoting catalytic properties in an amorphous np-Fe40Co40B20-800-5min catalyst based on enriched nanocrystalline." @default.
- W4386577807 created "2023-09-10" @default.
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- W4386577807 date "2023-12-01" @default.
- W4386577807 modified "2023-10-08" @default.
- W4386577807 title "Unraveling the role of nanocrystalline in amorphous nanoporous FeCoB catalysts for turning oxygen evolution activity and stability" @default.
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- W4386577807 doi "https://doi.org/10.1016/j.apsusc.2023.158395" @default.
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