碳/金属氧化物复合材料的合成及催化应用研究进展

Research progress in synthesis and catalytic application of carbon/metal oxide composites

碳材料和金属氧化物为常用的多相催化剂载体,其中碳材料具有巨大的比表面积、良好的吸附性能,但力学性能较差。金属氧化物载体则具有较高的机械强度和热稳定性,但常常会与活性金属作用太强使其催化活性降低。碳/金属氧化物复合材料作为一类新型材料受到了科学家的广泛关注,由于碳与金属氧化物(如氧化钛、氧化铝等)之间的协同作用,该复合材料表现出不同于单一组分的独特物理化学性质,重点综述了该类复合材料的制备方法及其在催化领域近年来的研究进展。

Carbon materials and metal oxides are commonly used heterogeneous catalyst supports. Among them,carbon materials have large specific surface area and good adsorption performance, but have poor mechanical properties. Metal oxide supports have good mechanical and thermal stability, but they usually have a strong interaction with active metals leading to lower catalytic activity. As a new type of material, carbon/metal oxide composites have attracted extensive attention from scientists. Because of the synergistic effect between carbon and metal oxides(such as titania, alumina, etc.), the composites exhibit unique physical and chemical properties different from a single component. In this review, the preparation methods of the composites and the research progress in the field of catalysis in recent years were summarized.