shows the SEM morphology of sil-ica aerogel and silica aerogel-activated carbon compositesobtained by using TMCS for modification of the wet gels. Thesynthesized samples exhibit porous network structure whichcontains spherical solid clusters and pores below 100 nm andthe particle distribution of samples are uniform. The particlessize of composites is greater than that of pure silica aero-gel. This figure denoted that surface modification reaction inthe composites was completely done. The FTIR analysis alsoshows this fact.