Формирование структуры и магнитных свойств коллоидных наночастиц феррита марганца в зависимости от длительности микроволнового гидротермального in situ синтеза
| Parent link: | Курзина, И. А. (химик ; 1972-). Перспективы развития фундаментальных наук=Prospects of Fundamental Sciences Development: сборник научных трудов XXI Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 23-26 апреля 2024 г..— .— Томск: Изд-во ТПУ Т. 2 : Химия.— 2024.— С. 295-297 |
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| Riassunto: | Заглавие с экрана This work reports a one-step ultrafast in-situ microwave hydrothermal (MAH) synthesis of soft magnetic colloidal nanoparticles using citric acid (CA). The chelation of CA with lattice metal ions led to the formation of a stable colloid based on 100 % pure MFO spinel NPs with a size of 32±10 nm and very soft magnetic properties, formed as a result of the MAH synthesis at a temperature of 175 °C and a duration of 30 minutes. Observably, the increase in the MAH synthesis duration from 30 minutes to 3 hours resulted in a decrease in the phase purity of CA-functionalized MFO NPs from 100 % to 52 % and the saturation magnetization from 43.4±0.7 to 33.9±2.0 emu/g owing to the increased CA degradation Текстовый файл |
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2024
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| Accesso online: | http://earchive.tpu.ru/handle/11683/80526 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=674079 |
| Riassunto: | Заглавие с экрана This work reports a one-step ultrafast in-situ microwave hydrothermal (MAH) synthesis of soft magnetic colloidal nanoparticles using citric acid (CA). The chelation of CA with lattice metal ions led to the formation of a stable colloid based on 100 % pure MFO spinel NPs with a size of 32±10 nm and very soft magnetic properties, formed as a result of the MAH synthesis at a temperature of 175 °C and a duration of 30 minutes. Observably, the increase in the MAH synthesis duration from 30 minutes to 3 hours resulted in a decrease in the phase purity of CA-functionalized MFO NPs from 100 % to 52 % and the saturation magnetization from 43.4±0.7 to 33.9±2.0 emu/g owing to the increased CA degradation Текстовый файл |
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