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- W4308985502 endingPage "122181" @default.
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- W4308985502 abstract "Atomically dispersed metal-N-C sites are highly active and selective for nitrate reduction reaction (NO3RR), while identifying their coordination and geometry structures remains significantly challenging. In this study, thermal-modulated single-atom Fe-based catalysts were fabricated and applied in NO3RR. The coordination and geometry structures of metal active-site in the Fe1/NC-X (X is the pyrolysis temperature) catalysts were elaborately dissected. The results disclose that Fe1/NC-900 with trigonal pyramidal Fe-N3 coordination exhibits the highest NO3RR performance with an ammonia yield rate (YR) of 18.8 mgNH3 h−1 mgcat−1 at − 0.9 V, and a Faradaic efficiency (FE) of 86% at − 0.7 V vs RHE. Electrochemical operando attenuated total reflection surface-enhanced infrared absorptive spectroscopy (ATR-SEIRAS) and density functional theory (DFT) calculation demonstrate that the Fe-N3 coordination in Fe1/NC-900 are responsible for the much higher catalytic activity in NO3RR due to their lone pair electrons, stronger charge transfer, and lower energy barrier of the rate-determining step." @default.
- W4308985502 created "2022-11-20" @default.
- W4308985502 creator A5019186151 @default.
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- W4308985502 date "2023-04-01" @default.
- W4308985502 modified "2023-10-18" @default.
- W4308985502 title "Construction and identification of highly active single-atom Fe1-NC catalytic site for electrocatalytic nitrate reduction" @default.
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- W4308985502 doi "https://doi.org/10.1016/j.apcatb.2022.122181" @default.
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