Structure refinement for tantalum nitrides nanocrystals with various morphologies

Lianyun Liu, Kai Huang, Jungang Hou, Hongmin Zhu

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Tantalum nitrides (TaN x) nanocrystals with different phase and morphology have been synthesized through homogenous sodium reduction under low temperature with the subsequent annealing process under high vacuum. The crystal structures of tantalum nitrides were determined by Rietveld refinement based on the X-ray diffraction data. The morphologies of various tantalum nitrides nanocrystals in high quality were analyzed through the electron microcopies examinations. The spherical TaN nanoparticles, cuboidal TaN 0.83 and TaN 0.5 nanocrystals have been selectively prepared at different annealing temperatures. In addition, the specific surface areas of the tantalum nitrides nanocrystals measured by BET method were around 9.87-11.64 m 2 g -1, indicating that such nano-sized tantalum nitrides could be suitable for capacitor with high specific capacitance.

本文言語English
ページ(範囲)1630-1635
ページ数6
ジャーナルMaterials Research Bulletin
47
7
DOI
出版ステータスPublished - 2012 7
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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