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  • Title: Flower-like 1T-MoS2/NiCo2S4 on a carbon cloth substrate as an efficient electrocatalyst for the hydrogen evolution reaction.
    Author: Zheng M, Chen Q, Zhong Q.
    Journal: Dalton Trans; 2021 Oct 05; 50(38):13320-13328. PubMed ID: 34608913.
    Abstract:
    The 1T-MoS2/NiCo2S4 composite in situ grown on carbon cloth (CC) was successfully prepared by a two-step hydrothermal method as an efficient electrode for the hydrogen evolution reaction. The morphology and composition characterization show that the composite has a flower-like structure with a large number of edges and surfaces exposed, and the content of the 1T phase in MoS2 is 63%. 1T-MoS2/NiCo2S4/CC exhibits an overpotential of 107 mV at 10 mA cm-2, and a Tafel slope of 66.4 mV dec-1 in an alkaline electrolyte. After continuous electrolysis for 24 h at an overpotential of 170 mV, 86% of the original current density was retained in an chronoamperometry measurement. The outstanding catalytic performance of the composite is ascribed to its unique structure, high 1T-MoS2 content and the synergistic catalysis between 1T-MoS2 and NiCo2S4. This work provides a facile and effective strategy for fabricating the 1T-MoS2/NiCo2S4/CC composite and demonstrates that the composite is expected to be a competitive non-noble HER catalyst.
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