Control of Particle Morphology and Size in Vapor-Phase Synthesis of Titania, Silica and Alumina Nanoparticles

Previous studies on vapor-phase synthesis of titania (TiO2), silica (SiO2), and alumina (Al2O3) nanoparticles were reviewed. Interactions between physicochemical phenomena involved in the particle growth and the operating variables were investigated. Strategies to produce non-aggregated spherical pa...

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Bibliographic Details
Published in:KONA Powder and Particle Journal 2015, Vol.32, pp.85-101
Main Authors: Park, Hoey Kyung, Park, Kyun Young
Format: Article
Language:English
Subjects:
alumina
Aluminum oxide
Mathematical models
Nanoparticles
silica
Silicon dioxide
Sintering
Strategy
Synthesis
titania
Titanium dioxide
vapor-phase
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Summary:Previous studies on vapor-phase synthesis of titania (TiO2), silica (SiO2), and alumina (Al2O3) nanoparticles were reviewed. Interactions between physicochemical phenomena involved in the particle growth and the operating variables were investigated. Strategies to produce non-aggregated spherical particles of the metal oxides are discussed. Model predictions based on the sintering laws without any adjustments in the sintering parameters rarely agreed with experimental data. There remains more to be understood in reaction and nucleation kinetics, sintering, and fragmentation mechanisms until the technology is developed to the stage of designing reactors for mass production of non-aggregated spherical particles for titania, silica and alumina
ISSN:0288-4534
2187-5537
DOI:10.14356/kona.2015018