中文摘要：

碳化硅（SiC）材料具有耐高温、耐酸碱腐蚀和高机械强度等优异性能，因此，许多研究者都致力于制备优良的SiC材料以取代传统材料用作苛刻条件下催化剂的载体材料．研究结果表明，具有高比表面积和空心核结构的载体材料可以负载更多的异质催化剂，从而提高催化剂的催化性能．因此，制备同时具有高比表面积和空心核结构的SiC材料具有重要的应用价值．传统的碳热还原反应、

英文摘要：

A SiO2@PPy core/shell structure was synthesized by performing the polymerization of pyrrole monomers around SiO2 spheres. For the first time, the SiC hollow spheres with a high surface area was prepared from the SiO2@PPy with a core/shell structure by using a carbothermal reduction reaction technique. The preparation process and the structures of the products were characterized with XRD, TEM, SEM, N2 adsorption-desorption isotherms and XPS. The results indicate that β-SiC hollow spheres with a specific surface area of 101.3 m^2/g could be prepared from the SiO2@PPy with a core/shell structure.