6533b860fe1ef96bd12c3232

RESEARCH PRODUCT

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

Mika SillanpääManickavachagam MuruganandhamManu LahtinenBalasubramaniam Arul Prakasam

subject

Materials scienceMorphology (linguistics)GaOOHNanoparticlechemistry.chemical_elementNanotechnologyengineering.materialHydrothermal circulationlaw.inventionSynthesisNanoparticlelawGeneral Materials ScienceCalcinationGalliumta116MicrostructureMechanical EngineeringDiamondCondensed Matter PhysicsMicrostructureHydrothermalChemical engineeringchemistryMechanics of MaterialsengineeringNanorodCalcination

description

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-Ga 2 O 3 with the retention of morphology. Both gallium oxyhydroxide and gallium oxide microstructures were analyzed with SEM, EDX, TEM and powder X-ray diffraction. α-Ga 2 O 3 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 (Ga 2 O 3 ) were phase pure.

https://doi.org/10.1016/j.matlet.2015.05.044