Su Dangsheng

Graphitized nanocarbon-supported metal catalysts: synthesis, properties, and applications in heterogeneous catalysis

Graphitized nanocarbon materials can be an ideal catalyst support for heterogeneous catalytic systems. Their unique physical and chemical properties, such as large surface area, high adsorption capacity, excellent thermal and mechanical stability, outstanding electronic properties, and tunable porosity, allow the anchoring and dispersion of the active metals. Therefore, currently they are used as the key support material in many catalytic processes. This review summarizes recent relevant applications in supported catalysts that use graphitized nanocarbon as supports for catalytic oxidation, hydrogenation, dehydrogenation, and C–C coupling reactions in liquid-phase and gas-solid phase-reaction systems. The latest developments in specific features derived from the morphology and characteristics of graphitized nanocarbon-supported metal catalysts are highlighted, as well as the differences in the catalytic behavior of graphitized nanocarbon-supported metal catalysts versus other related catalysts. The scientific challenges and opportunities in this field are also discussed.摘要石墨化纳米碳材料可作为一种理想的非均相催化剂载体.它们独特的物理化学性质,包括高比表面积,高吸附能力,优良的热稳定性和机械稳定性,优异的电子特性和可调变的孔径结构,这些性质使其能够锚定和分散活性金属.因此,石墨化纳米碳作为一种载体材料被广泛用于催化过程.本综述总结了近年来石墨化纳米碳作为负载型催化剂载体在氧化、加氢、脱氢、碳-碳偶联等气-固相或液-固相反应体系中的相关应用.重点介绍了石墨化纳米碳负载金属催化剂形态特性和表征,以及相较于其他相关催化剂表现出的不同的催化性能.并对这一领域存在的挑战和机遇作了简要讨论.