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- W4312083208 abstract "Two-dimensional (2D) MXenes-based nanostructures have recently emerged as effective electrocatalysts because of their excellent electrical conductivity and superior hydrophilicity. Nevertheless, the low electrocatalytic activity and the poor stability have hampered their applications in practical hydrogen production. Herein, a novel method to modulate the electronic structure and improve the catalytic activity of MXene by integrating amorphous CoSnO3 onto wrinkled Ti3C2Tx MXene nanosheets is reported, producing a promising electrocatalyst ([email protected]3) toward alkaline hydrogen evolution reaction (HER). It is found that CoSnO3 nanocubes are well grown on the surface of Ti3C2Tx MXene, stabilizing MXene nanosheets against spontaneous oxidation. More importantly, the strong interfacial electronic coupling between the two components greatly prompts the redistribution of electrons at the MXene and CoSnO3 interfaces and alters the electronic structure around Co, which enables the activation of high-potential Sn to have an optimal *H adsorption (ΔG*H), promoting the H* conversion for HER. The fabricated [email protected]3 exhibits high alkaline HER performances with an ultralow overpotential of 45 mV at 10 mA cm−2, a small Tafel slope of 51 mV dec-1 and the long-term stability in 1 M KOH, which even compares with commercial Pt/C catalyst." @default.
- W4312083208 created "2023-01-04" @default.
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- W4312083208 date "2023-03-01" @default.
- W4312083208 modified "2023-10-06" @default.
- W4312083208 title "Integration of amorphous CoSnO3 onto wrinkled MXene nanosheets as efficient electrocatalysts for alkaline hydrogen evolution" @default.
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- W4312083208 doi "https://doi.org/10.1016/j.seppur.2022.122947" @default.
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