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New Low Temperature Phases of Tungsten Oxynitride Stabilized by Doping with Fe, Co, and Ni

Published online by Cambridge University Press:  15 February 2011

F. Chen ,
J. Aitken  and
S. Parasher
F. Chen
Affiliation:
Rider University, Department of Chemistry, 2083 Lawrenceville Rd, Lawrenceville, NJ08648
J. Aitken
Affiliation:
Rider University, Department of Chemistry, 2083 Lawrenceville Rd, Lawrenceville, NJ08648
S. Parasher
Affiliation:
Rider University, Department of Chemistry, 2083 Lawrenceville Rd, Lawrenceville, NJ08648
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Abstract

Several low temperature tungsten-containing oxynitride phases were isolated and stabilized by doping with Fe, Co, and Ni. These Phases have the rocksalt structure and form around 420 °C by reacting MWO4 (M=Fe, Co, Ni) with dry ammonia. They served as intermediates in the formation of the hexagonal ternary nitrides (MWN2). X-ray powder diffraction analyses of these phases indicate that W0.62(NO) could be the parent structure type in each case. The incorporation of group VIIIB elements in the W0.62(NO) structure may play an important role in the formation and stabilization of these low temperature phases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 121
Copyright
Copyright © Materials Research Society 1997

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References

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