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 m2/g could be prepared from the SiO2@PPy with a core/shell structure.
