Ammonia-complexed precursors have been used by the authors to synthesize a number of new layered transition metal nitride compounds, including CrWN2, CoWN2, (Ni0.8Mo0.2)MoN2, and FeZrN2. The precursors are first prepared by complexing a stoichiometric mixture of metal chlorides dissolved in acetonitrile with ammonia and are then heated at moderate temperature in flowing ammonia to form the layered nitride of interest. As will be discussed, the key reactions responsible for this transformation have been identified by tracking the thermolysis of the precursor as a function of temperature using a series of analytical techniques.
Revised: October 25, 2007 |
Published: February 10, 2003
Citation
Weil K.S., and P.N. Kumta. 2003.Use of Complexed Ammonia Precursors in Synthesizing Layered Nitride Compounds. In Innovative Processing and Synthesis of Ceramics, Glasses, and Composites VII. Ceramic Transactions, 154, 3-14. Westerville, Oh:American Ceramic Society.PNNL-SA-39904.