Although transition metal carbides (TMCs) exhibit intriguing physical and chemical properties, a central issue for multifaceted applications based on TMC materials is to meet a large-scale and reliable synthetic route of air-stable TMC materials. Here, the primary aim is to address the issues by synthesizing Mo₂C encapsulated with multilayer graphene coral-like nanostructure. The oxidation stability of Mo₂C can be effectively compensated by the complementary hybridization of multilayer graphene, which serves as a perfect chemical barrier. Large-scale graphene/Mo₂C can be readily synthesized on commercial Mo foils by surface-oxidation-mediated chemical vapor deposition. Explicit structural and chemical evaluation was implemented to explore the structural and chemical manipulation of Mo₂C by selecting the starting material (Mo or MoO₃). Differences in the thickness of the oxide layers on the Mo surface led to structural and material diversities for the formation of Mo₂C with nanogranular and graphene/Mo₂C coral-like nanostructures. The capability of graphene/Mo₂C for applications in nanostructured electrodes and heaters was validated by its extraordinary electrical conductivity, substantial enhancement in chemical durability and mechanical flexibility, and outstanding performance of deformable heaters.

尽管过渡金属碳化物（TMC）表现出令人着迷的物理和化学特性，但基于TMC材料的多方面应用的主要问题是满足大规模且可靠的空气稳定TMC材料的合成路线。在这里，主要目的是通过合成包裹有多层石墨烯珊瑚状纳米结构的Mo ₂ C来解决这些问题。Mo ₂ C的氧化稳定性可以通过多层石墨烯的互补杂交得到有效补偿，这是一种理想的化学屏障。大型石墨烯/ Mo ₂通过表面氧化介导的化学气相沉积，可以很容易地在商业Mo箔上合成C。进行了明确的结构和化学评估，以通过选择起始材料（Mo或MoO ₃）来探索Mo ₂ C的结构和化学操作。Mo表面上氧化物层厚度的差异导致形成具有纳米颗粒和石墨烯/ Mo ₂ C珊瑚状纳米结构的Mo ₂ C的结构和材料多样性。石墨烯/ Mo ₂的能力用于纳米结构电极和加热器的C已通过其非凡的导电性，化学耐久性和机械柔韧性的显着提高以及可变形加热器的出色性能得到了验证。