Single step synthesis of thiourea derived NbCpNq or NbOxNy embedded niobium nitride (NbN) nanoparticles at elevated temperature

Aayush Gupta, Varun Singhal, O. P. Pandey

Research output: Contribution to journalArticlepeer-review

Abstract

Niobium nitride (NbN) nanoparticles have successfully been synthesized at elevated temperatures (700 and 800 °C) in a single step from niobium penta-oxide (Nb2O5), magnesium (Mg) and thiourea ((NH2)2CS) in a sealed autoclave. The synthesis temperature and holding time have been optimized to obtain single phase NbN. The phase determination and morphological features of synthesized samples have been analyzed by X-ray diffraction (XRD), electron microscopic (TEM) technique. Williamson-Hall analysis has also been done to observe the effects of synthesis parameters (temperature and holding time) on lattice distortion. Moreover, TEM results revealed the presence of oxygen centers in the form of NbCpNq or NbOxNy or NbOz inside NbN nanoparticles which was also supported by TEM-EDS and X-ray photoelectron spectroscopy (XPS) results.

Original languageEnglish
Article number105896
JournalInternational Journal of Refractory Metals and Hard Materials
Volume107
DOIs
StatePublished - Sep 2022
Externally publishedYes

Keywords

  • Nanoparticles
  • Niobium nitride
  • Solid state reaction
  • Synthesis optimization
  • XRD

Fingerprint

Dive into the research topics of 'Single step synthesis of thiourea derived NbCpNq or NbOxNy embedded niobium nitride (NbN) nanoparticles at elevated temperature'. Together they form a unique fingerprint.

Cite this