Journal of Nanomedicine & Nanotechnology

Carbon supported nano Mo2C: An efficient electrocatalyst and energy storage electrode material

Nano World Summit: Current and Future Perspectives

June 06-07, 2018 | Philadelphia, USA

Om Prakash Pandey and Rameez Ahmad Mir

Thapar Institute of Engineering and Technology, India

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

The electrocatalytic hydrogen production has shown significant impact as a part of solution to sustainable and affordable zero emission energy source. The demand of cost-effective, high efficient and stable bifunctional electrocatalyst for overall electrochemical water-splitting is critical to renewable energy systems. The utilization of costly and efficient noble metal catalysts (Pt, Pd etc.) hinders the commercial scale production of hydrogen as green energy resource. The carbonaceous compounds/carbon supported nano structures are the promising efficient electrocatalytic candidates for hydrogen evolution reaction (HER). These nano sized materials having the porous of surface carbon are suitable electrode for improving capacitance. Carbon coated Mo2C nano powders were synthesized through simple reduction-carburization route in an autoclave. Rietveld refinement of XRD data confirmed the formation of stable hexagonal Mo2C (P63/mmc) phase. Reaction temperature as well as reaction time facilitated the reduction and carburization to form Mo2C. The morphological features of synthesized sample were analyzed with the help of FESEM and TEM. The surface chemistry analysis was done via XPS and BET. The electrochemical analysis was done to study the electrocatalytic behavior and charge storage capacity of synthesized nano powders in acidic medium. The linear sweep voltammetry (LSV) and cyclic voltammetry (CV) analysis was done in low potential range 0.2 to -0.3V at a scan rate of 2 and 100 mVs-1. The LSV measurements showed negligible change in current after 3000 CV cycles. This show the higher stability of the synthesized nano powders, which is highly desirable. The electric double layer capacitance (EDLC) measurements were done via CV performed a various scan rate (20320 mVs-1). The nature of surface showed significant impact on charge transfer, stability and charge storage ability. oppandey@thapar.edu