Synthesis Tio2-carbon Aerogel through Sol- Gel Polymerization and Application in Electrochemistry

Introduction Carbon aerogel (CA) is a most promising material as an electrode for electrical double-layer capacitor (EDLC), as it allows an interconnected three-dimensional network structure, a high specific surface area, good electrical conductivity and a suitable pore size distribution for common electrolytes. Moreno-Castilla et al. [1] prepared titania/carbon composite by the sol-gel method, it has been demonstrated that development of the mesoand macroporosity as well as the surface area in the composite aerogels. According to the reference, TiO2doped carbon aerogel can change pore structure of aerogel. It is expected that this effect would be a potential material for EDLC. Min-Woong Ryoo et al. [2-3] studied the role of titania incorporated on activated carbon cloth for capacitive deionization (CDI) of NaCl solution. The incorporated titania on carbon close worked as electrosorption sites of ions, resulting in a significant increase in electrosorption with a considerable decrease in physical adsorption. The objective of this work is to develop optimum methods for preparation of carbon aerogel in which well dispersed fine TiO2 particles. Carbon aerogel electrodes applicable to the CDI process on NaCl solution were examined.