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Bimetallic molybdenum nitride Co3Mo3N: a new promising catalyst for CO2 reforming of methane

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Abstract

CO2 (dry) reforming of methane (DRM) has received much attention as an important process for the transformation and applications of two greenhouse gases (CH4 and CO2). In the present study, non-precious monometallic molybdenum nitride Mo2N and bimetallic molybdenum nitrides Ni3Mo3N and Co3Mo3N were synthesized and used as catalysts for DRM. It was found that the Mo2N, Ni3Mo3N and Co3Mo3N materials were catalytically active in the DRM reaction above 550 °C. Compared to the monometallic nitride Mo2N, the bimetallic nitrides Co3Mo3N and Ni3Mo3N showed enhanced catalytic activity, stability and resistance to oxidation. Particularly, Co3Mo3N exhibited the highest activity and stability among the three samples, which could be due to three factors, namely, the synergistic effect between the Mo and interstitial metal Co in the interstitial structure, the roughly equal adsorption capacities and consumption rates of reactants CO2 and CH4 and their increment on the surface of the catalyst at high reaction temperatures, as well as a possible conversion balance on the active centers established. The results suggest that the low-cost Co3Mo3N is a promising candidate for DRM.

Graphical abstract: Bimetallic molybdenum nitride Co3Mo3N: a new promising catalyst for CO2 reforming of methane

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Publication details

The article was received on 19 Nov 2016, accepted on 17 Jan 2017, published on 17 Jan 2017 and first published online on 17 Jan 2017


Article type: Paper
DOI: 10.1039/C6CY02428A
Citation: Catal. Sci. Technol., 2017, Advance Article
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    Bimetallic molybdenum nitride Co3Mo3N: a new promising catalyst for CO2 reforming of methane

    X. Fu, H. Su, W. Yin, Y. Huang and X. Gu, Catal. Sci. Technol., 2017, Advance Article , DOI: 10.1039/C6CY02428A

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