Synthesis of self-assembled α-GaOOH microrods and 3D hierarchical architectures with flower like morphology and their conversion to α-Ga2O3

Balasubramaniam Arul Prakasam, Manu Lahtinen, Manickavachagam Muruganandham, Mika Sillanpää

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This report reveals the methodology for the fabrication of α-GaOOH micro rods and micro flowers from gallium nitrate with two different complexing agents. α-GaOOH self-assembled 3D hierarchical architecture, comprising of nanorods and nanoribbbons with a flower like morphology, is fabricated under benign hydrothermal conditions. Calcination of α-GaOOH results in formation of α-Ga2O3 with the retention of morphology. Both gallium oxyhydroxide and gallium oxide microstructures were analyzed with SEM, EDX, TEM and powder X-ray diffraction. α-Ga2O3 micro flowers are furnished with nanorods having ordered diamond like cross section with a diagonal length proportion of 2:1. The hydrothermally fabricated GaOOH and their calcinated products (Ga2O3) were phase pure.

Original languageEnglish
Pages (from-to)370-372
Number of pages3
JournalMaterials Letters
Volume158
DOIs
Publication statusPublished - 22 Jun 2015
Externally publishedYes

Keywords

  • Calcination
  • GaOOH
  • Hydrothermal
  • Microstructure
  • Nanoparticle
  • Synthesis

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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