二维材料因其高比表面积,独特的电子结构及物理化学性质而引起人们的广泛关注。作为研究最为广泛的二维材料,石墨烯因其超高的力学强度、优异的电导率及热导率,在电化学储能、透明电极材料、纳米复合材料等领域展现出广泛的应用前景,但本征的零带隙及单一的化学组成限制了其在场效应晶体管等领域的应用。二维层状过渡金属碳化物纳米 Due to their high specific surface area, unique electronic structure and physical and chemical properties, two-dimensional materials have aroused people’s attention. As the most widely studied two-dimensional material, graphene has a wide range of applications in electrochemical energy storage, transparent electrode materials, nanocomposites due to its high mechanical strength, excellent electrical conductivity and thermal conductivity, However, the intrinsic zero bandgap and single chemical composition have limited their applications in fields such as field-effect transistors. Two-dimensional layered transition metal carbide nano