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Synthesis and methane cracking activity of a silicon nitride supported vanadium nitride nanoparticle composite

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Abstract

The co-ammonolysis of V(NMe2)4 and Si(NHMe)4 with ammonia in THF and in the presence of ammonium triflate ([NH4][CF3SO3]) leads to the formation of monolithic gels. Pyrolysing these gels produces mesoporous composite materials containing nanocrystalline VN and amorphous silicon imidonitride. Elemental mapping indicated a thorough distribution of VN with no evidence of large cluster segregation. Whilst not active for ammonia synthesis, the silicon nitride based materials were found to possess activity for the COx-free production of H2 from methane, which makes them candidates for applications in which the presence of low levels of CO in H2 feedstreams is detrimental.

Graphical abstract: Synthesis and methane cracking activity of a silicon nitride supported vanadium nitride nanoparticle composite

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Publication details

The article was received on 24 Jan 2017, accepted on 27 Feb 2017 and first published on 27 Feb 2017


Article type: Paper
DOI: 10.1039/C7DT00285H
Citation: Dalton Trans., 2017, Advance Article
  • Open access: Creative Commons BY license
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    Synthesis and methane cracking activity of a silicon nitride supported vanadium nitride nanoparticle composite

    I. AlShibane, J. S. J. Hargreaves, A. L. Hector, W. Levason and A. McFarlane, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT00285H

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