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Exploring the synergy of 2D MXene-supported black phosphorus quantum dots in hydrogen and oxygen evolution reactions

Abstract

Black phosphorus quantum dots (BP QDs) are facilely harvested on MXene nanosheets through van der Waals self-assembly. On the one hand, the BP QDs possess large surface areas and abundant active sites, offering fairly high electrocatalytic activity. On the other hand, the MXene nanosheets serve as a 2D substrate to confine the BP QDs, preventing them from aggregation and, thus, electrolyte inaccessibility. They can further contribute excellent electronic conductivity as well as superior structural robustness. The BP QDs, in turn, act as a spacer to isolate the nanosheets from restacking, thus preserving the active sites from being lost. The resulting BP QDs/MXene nanohybrids, as a bifunctional electrocatalyst, exhibit a remarkable synergy in both hydrogen and oxygen evolution reactions in alkaline media, whose underlying mechanism is fundamentally explored by the density functional theory calculations.

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Publication details

The article was received on 29 Aug 2018, accepted on 12 Oct 2018 and first published on 12 Oct 2018


Article type: Communication
DOI: 10.1039/C8TA08374F
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Exploring the synergy of 2D MXene-supported black phosphorus quantum dots in hydrogen and oxygen evolution reactions

    Y. Liu, X. Zhu and Y. Xie, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA08374F

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