▎ 摘　　要

In this study, we fabricated spherical reduced graphene oxide aerogels (rGOA) through freeze casting and thermal reduction for the fabrication of carbon-conducting polymer (polypyrrole, PPy) composites with excellent electrical/ mechanical properties. The rGOA-PPy or rGOA-PPy-SiO2 composites were prepared by a simultaneous co-vaporized vapor phase polymerization (SC-VPP) process. The surface area of the rGOA-PPy-SiO2 composites prepared using the SC-VPP process was expected to be larger than that of the rGOA-PPy composites, because the surface of the rGOA-PPy-SiO2 composites was entirely curved and the open pores were exposed on the surface. The orientation of pore structure was well developed. In addition, the surface area of the particle increased due to the open pores on the surface of the rGOA-PPy-SiO2 composite, thereby widening the contact area with the electrode, resulting in showing improved specific capacitance over rGOA or rGOA-PPy composite.