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- W4221116120 abstract "The exploration of environmentally friendly and highly efficient oxygen evolution reaction (OER) catalysts is vital to large-scale, electrochemical renewable-fuels generation. Here, we report an iron single-atom catalyst (SAC) confined in a covalent organic framework ([email protected]), which constitutes an unusual Fe–NO coordination in the skeleton. The as-prepared [email protected] exhibits a high mass activity of 9.20 A mg−1, which is 1.95 times higher than Ni species of the same coordination and 5.05 times higher than nanoparticulate Fe counterpart. Moreover, it shows, to the best of our knowledge, a record-low overpotential (290 mV) and Tafel slope (40 mV dec−1) among the reported atomically dispersed Fe-based catalysts and surpasses the benchmark Ir/C catalyst. The density functional theory calculation shows that the Fe–NO coordination exhibits low binding energy of oxygenated intermediates, which leads to an outstanding electrocatalytic OER performance. This work provides design strategies toward unusually coordinated SACs by prudent COF confinement for advanced electrocatalysis." @default.
- W4221116120 created "2022-04-03" @default.
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- W4221116120 date "2022-03-01" @default.
- W4221116120 modified "2023-09-30" @default.
- W4221116120 title "Iron single-atom catalysts confined in covalent organic frameworks for efficient oxygen evolution reaction" @default.
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- W4221116120 doi "https://doi.org/10.1016/j.xcrp.2022.100804" @default.
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