Abstract:
In this work, a series of GdFeO3 nanopowders was successfully synthesized via a reverse co-precipitation technique at different solution temperatures (0, 25 and 50 ∘C) followed by thermal treatment. Co-precipitated hydroxides and heat treatment products were analyzed using EDXS, DTA-TGA, PXRD, ASA and LD methods. It was shown that the formation temperature of GdFeO3 nanoparticles varies in the range of 737.5–758.8 ∘C and total weight loss varies in the range of 23.6–26.4% depending on the temperature of initial solutions. The specific surface areas of nanopowders were found to be strongly dependent on the factor mentioned above and belong to 2.5–16.3 m2/g values interval. The hierarchical structure of the obtained nanopowders was established and the effect of co-precipitation temperature on the average crystallite (21.4–34.3 nm), aggregate (46.2-301.2 nm) and agglomerate (33.5–40.9 μm) sizes was discussed in detail.
The research was supported by the Russian Science Foundation (project No. 19-73-00286).
Received: 02.02.2021 Revised: 10.04.2021
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Document Type:
Article
Language: English
Citation:
V. I. Popkov, Y. Albadi, “The effect of co-precipitation temperature on the crystallite size and aggregation/agglomeration of GdFeO3 nanoparticles”, Nanosystems: Physics, Chemistry, Mathematics, 12:2 (2021), 224–231
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\by V.~I.~Popkov, Y.~Albadi
\paper The effect of co-precipitation temperature on the crystallite size and aggregation/agglomeration of GdFeO$_3$ nanoparticles
\jour Nanosystems: Physics, Chemistry, Mathematics
\yr 2021
\vol 12
\issue 2
\pages 224--231
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\crossref{https://doi.org/10.17586/2220-8054-2021-12-2-224-231}
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