Glycothermal synthesis of nanocrystalline ZrO2 powders at low temperature without mineralizers

• DOI: 10.2109/jcersj2.120.52
• Publication Date: 2012-02-01T06:22:01Z
• Authors: Hyun-Sig KIL; Su-Hyun HWAG; Je-Hyeok RYU; Dae-Young LIM; Seung-Beom CHO
• Keywords: Monoclinic crystal system; Nanocrystalline material; Tetragonal crystal system

Zirconia (ZrO2) nanoparticles were synthesized at temperature as low 200°C through a glycothermal reaction using amorphous zirconium hydrous gel precursors and 1,4-butanediol solvent, XRD TEM data support that processing method provides simple route for producing highly crystallized ZrO2 without mineralizers, which could also be extended to other systems. results showed in condition had tetragonal phase with small portion of monoclinic phase, where the tetragonality was confirmed by Raman spectroscopy. The as-prepared have spherical morphology an average crystal size 10–15 nm agglomerated into bigger spheres diameter about 100 nm. begins transform 600°C when calcinations as-synthesized powder carried out.