Self-propagating routes to transition-metal phosphides
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 4 (2) , 279-283
- https://doi.org/10.1039/jm9940400279
Abstract
Frictional or thermal initiation (25–550 °C) of a mixture of sodium phosphide (Na3P) and anhydrous transition-metal halides in evacuated sealed Pyrex or quartz ampoules produces transition-metal phosphides, sodium chloride and in some cases phosphorus via, an exothermic self-propagating reaction. The reaction proceeds with a short thermal flash (1–2s) with estimated reaction temperatures in excess of 1000 °C. The metal phosphides were purified by methanol trituration and characterised by X-ray powder diffraction, SEM, EDXA, magnetic moment measurements, FTIR, microanalysis and solid-state 31P NMR.Keywords
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