Влияние температуры соосаждения на размер кристаллитов и агрегацию/агломерацию наночастиц GdFeO3
https://doi.org/10.17586/2220-8054-2021-12-2-224-231
Аннотация
В данной работе серия нанопорошков GdFeO3 была успешно синтезирована методом обратного соосаждения при различных температурах раствора (0, 25 и 50 °С) с последующей термической обработкой. Соосажденные гидроксиды и продукты термообработки анализировали методами РСМА, ДТА-ТГА, ПРД, АСА и ЛД. Показано, что температура образования наночастиц GdFeO3 колеблется в пределах 737.5–758.8 °С, а общая потеря массы колеблется в пределах 23.6–26.4 % в зависимости от температуры исходных растворов. Установлено, что удельная поверхность нанопорошков сильно зависит от упомянутого выше фактора и находится в интервале значений 2.5–16.3 м2/г. Установлена иерархическая структура полученных нанопорошков и подробно обсуждено влияние температуры соосаждения на средние размеры кристаллитов (21.4–34.3 нм), агрегатов (46.2–301.2 нм) и агломератов (33.5–40.9 мкм).
При поддержке: The research was supported by the Russian Science Foundation (project No. 19-73-00286). The study was partially performed on equipment of the Engineering Center of Saint Petersburg State Institute of Technology. The authors acknowledge D.P. Danilovich (EDXS, DTA-TGA, LD) and M.I. Chebanenko (ASA) for their help with the physicochemical characterization of the samples.
Об авторах
V. I. Popkov
Ioffe Institute
Россия
Россия
Saint Petersburg, 194021
Y. Albadi
Saint Petersburg State Institute of Technology; Al-Baath University
Россия
Россия
Saint Petersburg, 190013;
Homs, 77, Syrian Arab Republic
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Рецензия
Для цитирования:
Popkov V.I., Albadi Y. Влияние температуры соосаждения на размер кристаллитов и агрегацию/агломерацию наночастиц GdFeO3. Наносистемы: физика, химия, математика. 2021;12(2):224-231. https://doi.org/10.17586/2220-8054-2021-12-2-224-231
For citation:
Popkov V.I., Albadi Y. The effect of co-precipitation temperature on the crystallite size and aggregation/agglomeration of GdFeO3 nanoparticles. Nanosystems: Physics, Chemistry, Mathematics. 2021;12(2):224-231. https://doi.org/10.17586/2220-8054-2021-12-2-224-231
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