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- W3046068081 abstract "Designing active, robust and cost-effective catalysts for the nitrogen reduction reaction (NRR) is of paramount significance for sustainable electrochemical NH3 synthesis. Transition-metal diborides (TMB2) have been recently theoretically predicted to be a new class of potential NRR catalysts, but direct experimental evidence is still lacking. Herein, we present the first experimental demonstration that amorphous FeB2 porous nanosheets (a-FeB2 PNSs) could be a highly efficient NRR catalyst, which exhibited an NH3 yield of 39.8 μg h−1 mg−1 (−0.3 V) and a Faradaic efficiency of 16.7% (−0.2 V), significantly outperforming their crystalline counterpart and most of existing NRR catalysts. First-principle calculations unveiled that the amorphization could induce the upraised d-band center of a-FeB2 to boost d-2π* coupling between the active Fe site and *N2H intermediate, resulting in enhanced *N2H stabilization and reduced reaction barrier. Out study may facilitate the development and understanding of earth-abundant TMB2-based catalysts for electrocatalytic N2 fixation." @default.
- W3046068081 created "2020-08-03" @default.
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- W3046068081 date "2021-02-01" @default.
- W3046068081 modified "2023-10-17" @default.
- W3046068081 title "Amorphization activated FeB2 porous nanosheets enable efficient electrocatalytic N2 fixation" @default.
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- W3046068081 doi "https://doi.org/10.1016/j.jechem.2020.05.009" @default.
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