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- W3117565681 abstract "Abstract The electrocatalytic performance of nitrogen reduction reaction (NRR) is seriously hindered by the lack of cost-effective electrocatalysts with high-efficiency and high-selectivity. In this work, the NRR catalytic activity of single carbon (C) atom embedded into two-dimensional (2D) transition metal carbides (M2CO2, M = Ti, Zr, Hf, Nb, Ta, Mo, and W) with oxygen vacancy was systematically evaluated by means of comprehensive density functional theory (DFT) computations. Our results revealed that the embedded single C atom possesses good durability due to its strong interaction with metal atoms around vacancy in these MXenes. Interestingly, through high-throughput screening, the single C atoms anchored on Nb2CO2, Mo2CO2, and W2CO2 nanosheets are identified as promise NRR catalysts with high-activity due to their low limiting potentials (–0.14 to –0.38 V) via a distal mechanism and outstanding selectivity again the competing hydrogen evolution reaction. Remarkably, the intrinsic activity of the C single atom supported by these MXenes mainly originates from the activation degree of the adsorbed N2 molecule, which is greatly dependent on the electron filling degree of pz orbital in C atom. Thus, by carefully choosing suitable substrates, the single C catalyst can be utilized as ideal NRR catalysts for NH3 synthesis." @default.
- W3117565681 created "2021-01-05" @default.
- W3117565681 creator A5011941921 @default.
- W3117565681 creator A5062066243 @default.
- W3117565681 creator A5069321900 @default.
- W3117565681 creator A5075953535 @default.
- W3117565681 creator A5086445887 @default.
- W3117565681 date "2021-04-01" @default.
- W3117565681 modified "2023-10-14" @default.
- W3117565681 title "Enhanced catalytic activity of MXene for nitrogen electoreduction reaction by carbon doping" @default.
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- W3117565681 doi "https://doi.org/10.1016/j.jcis.2020.12.034" @default.
- W3117565681 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33387818" @default.
- W3117565681 hasPublicationYear "2021" @default.
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