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Synthesis and Characterization of the New Ternary Nitride (Fe0.8W0.2)WN2

✍ Scribed by Joel D. Houmes; Sandhya Deo; Hans-Conrad zur Loye

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 316 KB
Volume: 131
Category: Article
ISSN: 0022-4596
DOI: 10.1006/jssc.1997.7401

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✦ Synopsis

The new layered ternary transition-metal nitride (Fe 0.8 W 0.2 )WN 2 has been synthesized in a single-step ammonolysis of the transition-metal oxide precursor Fe 2 (WO 4 ) 3 . The nitride was characterized by powder X-ray diffraction, a ‫؍‬ 2.87 A s , c ‫؍‬ 10.96 A s . The proposed structure consists of alternating layers of MN 6 (M ‫؍‬ W : Fe (1 : 4)) octahedra and M N 6 (M ‫؍‬ W) trigonal prisms. Four-probe conductivity measurements indicate poor metallic conductivity with a very small temperature dependence.

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