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Advances in Manufacturing
Erschienen in: Advances in Manufacturing 2/2013

01.06.2013

Comparison of sol-gel and co-precipitation methods on the structural properties and phase transformation of γ and α-Al2O3 nanoparticles

verfasst von: A. Rajaeiyan, M. M. Bagheri-Mohagheghi

Erschienen in: Advances in Manufacturing | Ausgabe 2/2013

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Abstract

The nanostructured γ and α alumina powders were synthesized by sol-gel and co-precipitation methods, and properties of the powders were studied by XRD, SEM, TEM, BET and FTIR. The results showed that both γ and α phases were formed in the lower temperature in precipitation method compared to sol-gel. The size of spherical α-alumina synthesized by sol-gel was 10–15 nm, whereas the sample prepared by co-precipitation yielded nearly spherical and hexagon α-powder with particle size of 10–50 nm. At 750 °C the resulting powder prepared by co-precipitation exhibited larger surface area (206.2 m2/g) compared to sol-gel (30.72 m2/g), hence it is recommended for catalytic and sensing applications.
Vorheriger Artikel Nanodots of multiferroic oxide material BiFeO3 from the first principles
Nächster Artikel Effect of reducing agents on the structure of zinc oxide under microwave irradiation

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Metadaten
Titel
Comparison of sol-gel and co-precipitation methods on the structural properties and phase transformation of γ and α-Al2O3 nanoparticles
verfasst von
A. Rajaeiyan
M. M. Bagheri-Mohagheghi
Publikationsdatum
01.06.2013
Verlag
Shanghai University
Erschienen in
Advances in Manufacturing / Ausgabe 2/2013
Print ISSN: 2095-3127
Elektronische ISSN: 2195-3597
DOI
https://doi.org/10.1007/s40436-013-0018-1

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