Herein, a mesh carbon-coated MoSe₂/Mo₂CT_x hybrid material (MoSe₂/Mo₂CT_x@C) is proposed as an effective catalyst for electrochemical hydrogen evolution reaction (HER). On one hand, the highly conductive Mo₂CT_x substrate enhanced charge transfer ability and effectively prevented the agglomeration of MoSe₂ nanosheets to expose abundant active sites. On the other hand, the carbon coating layer further improved the conductivity and effectively prevented Mo₂CT_x from being oxidized in the environment. Consequently, the unique MoSe₂/Mo₂CT_x@C hybrid material exhibited excellent HER performance. Specifically, the MoSe₂/Mo₂CT_x@C catalyst only required an overpotential of 108.3 mV to reach a current density of 10 mA cm⁻² and displayed excellent durability under long-term cycling in acidic solution. This research highlights the potential applications of MXene-based composite materials in the energy field.

在此，提出了一种网状碳包覆的MoSe ₂ / Mo ₂ CT _x杂化材料（MoSe ₂ / Mo ₂ CT _x @C）作为电化学放氢反应（HER）的有效催化剂。一方面，高导电性的Mo ₂ CT _x衬底增强了电荷转移能力，并有效地防止了MoSe ₂纳米片的团聚，从而暴露出大量的活性位点。另一方面，碳涂层进一步改善了导电性并且有效地防止了Mo ₂ CT _x在环境中被氧化。因此，独特的MoSe ₂ / Mo₂ CT _x @C杂化材料表现出出色的HER性能。具体地，MoSe ₂ / Mo ₂ CT _x C催化剂仅需要108.3 mV的过电势即可达到10 mA cm ^-2的电流密度，并且在酸性溶液中长期循环下显示出优异的耐久性。这项研究突出了基于MXene的复合材料在能源领域的潜在应用。