Microstructures and Electrical Properties of Carbon/Silica Nanocomposites: Influence of the Silica Nanoparticles

Abstract

In this work, the inorganic/organic a Carbon-Silica (C-S) nanocomposites in additional amorphous carbon matrix was successfully obtained through the sol–gel method, the two components are mixed in an effort to blend the best properties of both. The acquired C-S nanocomposites were characterized by X-ray diffraction (XRD). It was observed by Transmission Electronic Microscopy that nanoparticles with sizes from 14[Formula: see text]nm to 20[Formula: see text]nm. After heat treatment, we explore the electrical properties of the obtained C-S material. The current–voltage ([Formula: see text]–[Formula: see text]) and alternating current (ac) techniques in the temperature range (80–300[Formula: see text]K) was examined.