Enhanced Hydrogen Storage Properties of Hydrothermally Synthesized TiO2 Nanotube-Multiwall Carbon Nanotube Nanocomposite


Enhanced Hydrogen Storage Properties of Hydrothermally Synthesized TiO2 Nanotube-Multiwall Carbon Nanotube Nanocomposite

M.C. Raj, T.S. Natarajan, R.J. Tayade, H.C. Bajaj

Titanium dioxide (TiO2)-carbon based composite materials have gained greater attention because of their eco-friendly nature, higher adsorption capacity and enhanced photocatalytic activity. Among the TiO2-carbon composite materials, TiO2-multiwall carbon nanotube (TNT-MWCNT) composite materials are attractive for hydrogen storage application due to the presence of two tubular structures with high surface area. The present study focus on the hydrogen uptake studies of hydrothermally synthesized TiO2 nanotube-multiwall carbon nanotube nanocomposite by in-situ addition of MWCNT. Subsequently characterized by powder X-ray diffraction (PXRD), transmission electron microscope (TEM), CHNS analysis, and nitrogen adsorption-desorption isotherm analysis. Hydrogen uptake studies revealed that 0.25 wt% MWCNT@TNT nanocomposite exhibited enhanced H2 uptake (132 cc/g) than other composite and bare MWCNT (36 cc/g) and TNT (54 cc/g) respectively. The increment in the hydrogen uptake capacities of the composite materials was attributed to the enhancement in the surface area as well as micro pore volume by multi walled carbon nanotube incorporation.

Multiwall Carbon Nanotube, TiO2 Nanotube, Hydrothermal, Hydrogen Storage, Nanocomposite

Published online 2/25/2018, 18 pages

DOI: http://dx.doi.org/10.21741/9781945291593-9

Part of Photocatalytic Nanomaterials for Environmental Applications

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