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

A. G. Cairns, J. G. Gallagher, J. S. J. Hargreaves, D. Mckay (Lead / Corresponding author), J. L. Rico (Lead / Corresponding author), K. Wilson

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15 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)613-619
Number of pages7
JournalJournal of Solid State Chemistry
Volume183
Issue number3
DOIs
Publication statusPublished - Mar 2010

Keywords

  • Copper
  • Gold
  • Molybdenum bronzes
  • Molybdenum nitride
  • Nickel
  • Palladium

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