Facile charge transport in FeNx/Mo2N/CNT nanocomposites for efficient hydrogen evolution reactions

Ojha, Kasinath ; Banerjee, Shivali ; Ganguli, Ashok K. (2017) Facile charge transport in FeNx/Mo2N/CNT nanocomposites for efficient hydrogen evolution reactions Journal of Chemical Sciences, 129 (7). pp. 989-997. ISSN 0974-3626

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Official URL: http://www.ias.ac.in/describe/article/jcsc/129/07/...

Related URL: http://dx.doi.org/10.1007/s12039-017-1302-6

Abstract

Molybdenum based materials are gaining importance as electrocatalysts for hydrogen evolution reaction because of their low cost and good electrocatalytic efficiency. Introducing iron nitride with molybdenum nitride as a composite results in efficient hydrogen evolution activity with current density of ∼120 mA/cm2 at −400 mV vs. RHE. The nanocomposites were characterized using powder XRD, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Electron Diffraction, Thermogravimetric Analysis and FTIR Spectroscopy. The electrochemical investigations suggest that the electrocatalytic activity of the composite increases with iron nitride content. The composite exhibits good electrochemical stability upto 42 hours in acidic medium. The hydrogen evolution reaction (HER) follows Volmer-Heyrovsky mechanism where Volmer reaction is the rate determing step.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Metal Nitride; Nanocomposites; Hydrogen Evolution Reaction; N-Doped CNTs
ID Code:111999
Deposited On:28 Sep 2017 12:26
Last Modified:28 Sep 2017 12:26

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