Synthesis and Growth Kinetics of Monodispersive Indium Hydrate Particles
Resource
Journal of the American Ceramic Society 89 (2): 527-533
Journal
Journal of the American Ceramic Society
Journal Volume
89
Journal Issue
2
Pages
527-533
Date Issued
2006
Date
2006
Author(s)
Lin, Sung-En
Abstract
Nano- or submicron In(OH)3 and In2O3 particles of different morphologies were synthesized from a nitrate solution by a homogeneous precipitation process. By using X-ray diffractometer, thermogravimetric analysis, transmission and scanning electron microscopes, and inductively coupled plasma-optical emission spectrometry, the properties of particle growth were analyzed. The results indicated that the kinetics of the hydrolysis reaction of In3+ was a zero-order reaction with an activation energy of 128 kJ/mol, which implied that the reaction was controlled by the decomposition kinetic of urea additive. The growth anisotropic of particles, pH value of reaction solutions, residual In3+ concentration relative to aging time with different temperatures and starting concentrations were reported in this study. Calcination of the hydrate to form In2O3 particles between 300° and 900°C did not greatly change the morphologies of the particles. © 2005 by The American Ceramic Society.
Other Subjects
Growth kinetics; Nitrates; Particles (particulate matter); Scanning electron microscopy; Synthesis (chemical); Indium hydrates; Inductively coupled plasma-optical emission spectrometry; Indium compounds
Type
journal article
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