title: Preparation and characterization of ACs/TiO2 composite electrodes for improving the specific capacitance of electrochemical double-layer capacitors.
abstract: In this work, the energy storage composite electrodes were prepared by mixing activated carbons (ACs) modified with a nanosize titanium oxide (TiO2) through a means of ultrasonic vibration in ethanol solution for 30 min. We examined the cyclic voltammetry of the composite electrodes in an aqueous electrolyte, 1 M H2SO4. It was found that the specific capacitance of the composite electrodes measured in a range of 0-0.8 V was increased from 100 to 155 F/g compared to carbon electrodes comprised of activated carbon only. This was attributed to a reduction of polarization of the ACs modified by nanosized TiO2.
authors.affiliation: Department of Chemistry, Inha University, 253, Incheon 402-751, South Korea.
authors.forename: Min-Kang
authors.initials: MK
authors.lastname: Seo
authors.forename: Soo-Jin
authors.initials: SJ
authors.lastname: Park