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  • Title: Phase Engineering of W-Doped MoS2 by Magneto-Hydrothermal Synthesis for Hydrogen Evolution Reaction.
    Author: Li C, Zhu L, Wu Z, Chen Q, Zheng R, Huan J, Huang Y, Zhu X, Sun Y.
    Journal: Small; 2023 Nov; 19(48):e2303646. PubMed ID: 37528507.
    Abstract:
    Molybdenum disulfide (MoS2 ) has been proved as an excellent potential hydrogen evolution reaction (HER) catalyst. Compared with thermodynamically stable 2H-MoS2 , 1T-MoS2 exhibits higher conductivity and catalytic activity, whereas it is usually difficult to prepare since of thermodynamically metastable. Herein, a feasible method is reported to fabricate ambient-stable MoS2 with high concentration 1T phase through magnetic free energy synergistic microstrain induced by W doping under low magnetic field. The 1T phase proportion in MoS2 can be as high as 80% and is ambient-stable for more than one year. The catalyst prepared under a magnetic field of 3 T delivers an overpotential of 195 mV at a current density of 10 mA cm-2 and has a long-term stability over 50 h. This work provides a novel strategy for preparation of MoS2 with high 1T concentration and high stability.
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