Formation mechanism of core-shell nanocrystals obtained via dehydration of coprecipitated hydroxides at hydrothermal conditions
https://doi.org/10.17586/2220-8054-2018-9-4-568-572
Abstract
Here, we propose a formation mechanism for core-shell nanoparticles by self-organization in coprecipitated mixed hydroxides under hydrothermal conditions. A thermodynamic reason for this process is because of a decrease in the components’ solubilities together with an increase of structure’s dimension. As a particular example of such type of behavior, we investigate core-shell nanoparticle formation in the ZrO2–Y2O3–H2O system.
Keywords
core-shell nanoparticles,
hydrothermal synthesis,
multi-component systems,
solid solution,
zirconia,
formation mechanism
Supporting agencies: The research was supported by Russian Science Foundation grant 16-13-10252.
About the Authors
O. V. Almjasheva
Saint-Petersburg Electrotechnical University “LETI”; Ioffe Institute
Russian Federation
Russian Federation
Saint-Petersburg, 197376
Saint-Petersburg, 194021
A. A. Krasilin
Ioffe Institute
Russian Federation
Russian Federation
Saint-Petersburg, 194021
V. V. Gusarov
Ioffe Institute
Russian Federation
Russian Federation
Saint-Petersburg, 194021
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Review
For citations:
Almjasheva O.V., Krasilin A.A., Gusarov V.V. Formation mechanism of core-shell nanocrystals obtained via dehydration of coprecipitated hydroxides at hydrothermal conditions. Nanosystems: Physics, Chemistry, Mathematics. 2018;9(4):568-572. https://doi.org/10.17586/2220-8054-2018-9-4-568-572
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