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Issue 17, 2017
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Nano-structured hybrid molybdenum carbides/nitrides generated in situ for HER applications

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Abstract

A nanohybrid material containing carbon-supported molybdenum carbide and nitride nanoparticles of size ranging from 8 to 12 nm exhibits excellent HER catalytic activity. This molybdenum based catalyst (MoCat) is designed as a highly efficient, low-cost (precious-metal-free), highly stable electrocatalyst for water electrolysis in acidic media, and synthesized using a simple methodology. These nanoparticles (β-Mo2C and γ-Mo2N) were produced in situ using a metal precursor and C/N source via a controlled solid state reaction. An overpotential of 96 mV for driving a current density of 10 mA cm−2 was measured for the MoCat catalyst, which is very close to that of commercially available Pt/C catalysts (61 mV).

Graphical abstract: Nano-structured hybrid molybdenum carbides/nitrides generated in situ for HER applications

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Supplementary files

Article information


Submitted
28 Feb 2017
Accepted
21 Mar 2017
First published
21 Mar 2017

J. Mater. Chem. A, 2017,5, 7764-7768
Article type
Communication

Nano-structured hybrid molybdenum carbides/nitrides generated in situ for HER applications

R. Kumar, R. Rai, S. Gautam, A. De Sarkar, N. Tiwari, S. N. Jha, D. Bhattacharyya, A. K. Ganguli and V. Bagchi, J. Mater. Chem. A, 2017, 5, 7764
DOI: 10.1039/C7TA01815K

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