Charge storage in carbon nanotube-TiO2 hybrid nanoparticles

Authors

Byung C. Kim, University of WollongongFollow
S J. Kim, Gangneung-Wonju National University, Korea
J.K. Chung, Gangneung-Wonju National University, Korea
Jun Chen, University of WollongongFollow
S Y. Park, Gangneung-Wonju, National University, Korea
Gordon G. Wallace, University of WollongongFollow

RIS ID

59130

Publication Details

Kim, BC, Kim, SJ, Chung, J, Chen, J, Park, SY & Wallace, GG (2012), Charge storage in carbon nanotube-TiO2 hybrid nanoparticles, Synthetic Metals, 162(7/8), pp. 650-654.

Abstract

Multi-walled carbon nanotubes (MWNTs) were directly deposited onto Ni modified TiO₂ particles using chemical vapour deposition (CVD). These novel hybrid nanostrucured MWNT/TiO₂ composites were characterised by scanning electron microscopy (SEM), revealing a novel hybrid structure wherein the CNT growth sprouted from the TiO₂ particles and thermogravimetric analysis (TGA) that revealed a carbon content of 8%. Electrochemical methods were used to determine capacitance values as high as 146 Fg^-1 using acetonitrile containing 0.1 M tetrabutylammonium perchlorate as electrolyte. An energy density and power density of 21 Wh kg^-1 and 10 kW kg^-1 respectively were obtained.