TY - JOUR ID - 29318 TI - Synthesis and Characterization of SiO2-Carbon Nanotube Hybrides Using a Sol-Gel Method JO - Journal of Ultrafine Grained and Nanostructured Materials JA - JUFGNSM LA - en SN - 2423-6845 AU - Montakhab, N. AU - Hassani, S. S. AU - Rashidi, A. AU - Aboutalebi, M. R. AU - Arabi, H. AD - School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST) AD - Nanotechnology Research Center, Research Institute of Petroleum Industry AD - Center of Excellence for Advanced Materials Processing (CEAMP), School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST) Y1 - 2012 PY - 2012 VL - 45 IS - 1 SP - 29 EP - 34 KW - BET surface area KW - crystal size KW - hydrogen storage capacity KW - Morphology KW - nanohybride KW - SiO2-CNT KW - thermal conductivity DO - 10.7508/jufgnsm.2012.01.006 N2 - This work is focused on synthesis of SiO2- CNT hybrides via sol-gel method. Homogeneous distribution of carbon nanotubes within silicon matrix was obtained by mixing the functionalized carbon nanotube (CNTCOOH) with active silicic acid followed by titration to the solution of sodium silicate (Na2SiO3) under the average temperature condition of 80?C. Different ratios of multi-walled carbon nanotubes and various concentrations of colloidal silica were used for synthesis of SiO2-CNT. Powder X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) used for studying the structure and morphological characteristics of the synthesized SiO2-CNT hybrids. The results showed that the various morphologies of SiO2-CNTs are obtained with different ratio of precursors. The SEM images indicated the formation of uniform nanoparticles, nanowires and nanotube structures in various samples. In addition, the hydrogen storage capacity and thermal conductivity of SiO2-CNT hybrides were determined and presented in this article. Also total pore volume and BET surface area were calculated for these composites. UR - https://jufgnsm.ut.ac.ir/article_29318.html L1 - https://jufgnsm.ut.ac.ir/article_29318_6a0210417c9036990735a105c207b155.pdf ER -