Synthesis of VC-C Nanocomposite for Electrochemical Applications

Monday, October 12, 2015: 10:00
Remington B (Hyatt Regency)
M. Mahajan, K. Singh (Thapar University), and O. P. Pandey (THAPAR UNIVERSITY, Patiala)
Carbon-coated vanadium carbide (VC-C) nanocomposite were synthesized by single-step chemical-reduction route in an autoclave at the temperature of 600oC. In this experiment, vanadium pentode (V2O5) was used as precursor, magnesium as reducing agent (Mg) and acetone as carbon source. The gases produced by the decomposition of acetone generate carbon and H2/CO2 gases at high temperature which further creates high pressure inside the autoclave.  The processing parameters were optimized for the formation of single phase vanadium carbide (VC). The structure, morphology, and thermal stability of the obtained product were studied by XRD, TEM and TGA/DTA techniques, respectively. The N2 adsorption-desorption isotherm indicated the mesoporous structure of the VC. The electrochemical properties of the obtained C@VC were studied by the cyclic voltammetric studies.