Synthesis of nanocrystalline MoN from a new precursor by TPR method.

Molybdenum nitride (MoN) nanoparticles with high BET surface area (S_BET = 351.0352 m²/g) have been successfully obtained from ammonium polymolybdate, (NH₄)₆Mo₇O₂₄. Differential thermal analysis (DTA), thermogravimetric analysis (TGA) and X-ray powder diffraction (XRD) analysis were used to investigate the effect of water in the precursor. X-ray photoelectron spectroscopy (XPS) was used to determine the empirical formula of the product. Also, MoN nanorods with high aspect ratio have been prepared using Al₂O₃ template. XRD, transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM) were used to characterize the structure of the nanorods. [ABSTRACT FROM AUTHOR]