Preparation of aluminum hydroxide and oxide nanostructures with controllable morphology by wet oxidation of AlN/Al nanoparticles

S. O. Kazantsev, A. S. Lozhkomoev, E. A. Glazkova, I. Gotman, E. Y. Gutmanas, M. I. Lerner, S. G. Psakhie

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A simple and environmentally friendly method to prepare aluminum oxyhydroxide and trihydroxide nanostructures by wet oxidation of AlN/Al composite nanoparticles was developed. The AlN/Al nanoparticles used were produced by electrical explosion of an aluminum wire in nitrogen atmosphere. The obtained nanostructures were characterized employing X-ray diffraction (XRD), transmission and high-resolution scanning electron microscopy (TEM and HRSEM), thermogravimetric analysis (TGA) and N2 adsorption-desorption technique (BET). By changing the wet oxidation conditions, aluminum hydroxides with different phase composition, morphology and texture characteristics were synthesized. After calcination at different temperatures, a range of transition and stable alumina nanostructures were obtained that preserved the morphology of the aluminum hydroxide precursors - agglomerated nanosheets, nanoplates or hexagonal nanorods, up to 1000 °C. Optimal process parameters for maximum surface area development for all the precursor materials have been established.

Original languageEnglish
Pages (from-to)97-103
Number of pages7
JournalMaterials Research Bulletin
Volume104
DOIs
Publication statusPublished - 1 Aug 2018

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Keywords

  • AlN/Al nanoparticles
  • Alumina
  • Aluminum hydroxide
  • Calcination
  • Morphology
  • Specific surface area
  • Wet oxidation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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