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

Author(s) AlShibane, I.; Hargreaves, J.S.J.; Hector, A.L.; Levason, W.; McFarlane, A.
Journal Dalton Trans
Date Published 2017 Mar 07

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.

DOI 10.1039/c7dt00285h
ISSN 1477-9234
Citation Dalton Trans. 2017.

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