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; J. L. Rico; K. Wilson

doi:10.1016/j.jssc.2009.12.018

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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23 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 language	English
Pages (from-to)	613-619
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	183
Issue number	3
DOIs	https://doi.org/10.1016/j.jssc.2009.12.018
Publication status	Published - Mar 2010

Keywords

Copper
Gold
Molybdenum bronzes
Molybdenum nitride
Nickel
Palladium

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.jssc.2009.12.018

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

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.",

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author = "Cairns, {A. G.} and Gallagher, {J. G.} and Hargreaves, {J. S. J.} and D. Mckay and Rico, {J. L.} and K. Wilson",

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AU - Cairns, A. G.

AU - Gallagher, J. G.

AU - Hargreaves, J. S. J.

AU - Mckay, D.

AU - Rico, J. L.

AU - Wilson, K.

PY - 2010/3

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AB - 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.

KW - Copper

KW - Gold

KW - Molybdenum bronzes

KW - Molybdenum nitride

KW - Nickel

KW - Palladium

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

Abstract

Keywords

ASJC Scopus subject areas

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