Facile method for fabrication of surfactant-free concentrated CeO2 sols

We report a facile method for fabrication of highly concentrated electrostatically stabilized colloidal solutions containing ultra-small cerium (IV) oxide crystallites having a narrow size distribution (3-5 nm according to x-ray diffraction, and 10-30 nm according to dynamic light scattering). The p...

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Published in:Materials research express 2017-05, Vol.4 (5)
Main Authors: Shcherbakov, Alexander B, Teplonogova, Maria A, Ivanova, Olga S, Shekunova, Taisiya O, Ivonin, Ivan V, Baranchikov, Alexander Ye, Ivanov, Vladimir K
Format: Article
Language:English
Subjects:
ceric ammonium nitrate
cerium oxide
hydrothermal treatment
nanocrystalline materials
nanoparticles
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container_title Materials research express
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creator Shcherbakov, Alexander B
Teplonogova, Maria A
Ivanova, Olga S
Shekunova, Taisiya O
Ivonin, Ivan V
Baranchikov, Alexander Ye
Ivanov, Vladimir K
description We report a facile method for fabrication of highly concentrated electrostatically stabilized colloidal solutions containing ultra-small cerium (IV) oxide crystallites having a narrow size distribution (3-5 nm according to x-ray diffraction, and 10-30 nm according to dynamic light scattering). The proposed method comprises hydrothermal treatment of ceric ammonium nitrate aqueous solutions having concentrations over 0.2 M, in the temperature range of 80-100 °C, and the formation of nanoceria sediments, which can be easily peptized in both protic (water, isopropanol) and aprotic (DMF) media, forming stable and transparent CeO2 sols.
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source Institute of Physics:Jisc Collections:IOP Publishing Read and Publish 2024-2025 (Reading List)
subjects ceric ammonium nitrate
cerium oxide
hydrothermal treatment
nanocrystalline materials
nanoparticles
title Facile method for fabrication of surfactant-free concentrated CeO2 sols
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