The effect of low levels of dopants upon the formation and properties of beta-phase molybdenum nitride

Cairns, A.G., Gallagher, J.G., Hargreaves, J.S.J., Mckay, D., Rico, J.L. and Wilson, K. (2010) The effect of low levels of dopants upon the formation and properties of beta-phase molybdenum nitride. Journal of Solid State Chemistry, 183(3), pp. 613-619. (doi:10.1016/j.jssc.2009.12.018)

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Abstract

The addition of 1 wt% Pd, Au, Ni and Cu dopants has been demonstrated to strongly alter the morphology of beta-phase molybdenum nitride prepared by treatment of MoO3 with a 3/1 H2/N2 mixture at 750 °C. Furthermore, the addition of Pd significantly enhances the surface area and the formation of the nitride phase. It is proposed that the facile formation of molybdenum bronzes in this system is important in this respect. The dopants have also been observed to modify the denitridation characteristics of the beta-phase, with an overall reduction of the proportion of NH3 formed upon using a 3/1 H2/Ar mixture with respect to the undoped sample.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Rico Cerda, Dr Jose Luis and Wilson, Mrs Kim and Gallagher, Mr James and Hargreaves, Professor Justin
Authors: Cairns, A.G., Gallagher, J.G., Hargreaves, J.S.J., Mckay, D., Rico, J.L., and Wilson, K.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of Solid State Chemistry
ISSN:0022-4596
ISSN (Online):1095-726X
Published Online:04 January 2010

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
370401Fundamental studies as a route towards greener, nitrogen insertion chemistryJustin HargreavesEngineering & Physical Sciences Research Council (EPSRC)GR/S87300/01Chemistry