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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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Publication details

The article was received on 28 Feb 2017, accepted on 21 Mar 2017 and first published on 21 Mar 2017


Article type: Communication
DOI: 10.1039/C7TA01815K
Citation: J. Mater. Chem. A, 2017, Advance Article
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    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, Advance Article , DOI: 10.1039/C7TA01815K

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