Synthesis method of transition metal nitride and transition metal nitride

摘要

The present invention discloses a method of synthesizing transition metal nitride by using supercritical ammonia. Transition metal nitride such as vanadium nitride, molybdenum nitride, titanium nitride, nickel nitride, neodymium nitride, iron nitride, etc. can be synthesized in supercritical ammonia with reducing mineralizers such as potassium, sodium, lithium, magnesium, calcium, and aluminum. Since supercritical ammonia has characteristics of both gas and liquid, it can over complicated fine structure or fine particles. The new method is suitable for forming a protective coating on complicated structure or forming micro- to nano-sized particles.

主权项

1. A method of synthesizing a nitride of a transition metal or transition metal alloy comprising:
(a) supplying at least one source material containing one or more transition metals in a reactor; (b) supplying ammonia in the reactor; (c) supplying a mineralizer which enhances the reaction between the source material and the ammonia under reaction conditions; and (d) heating the reactor to attain supercritical condition of the ammonia to form transition metal nitride.