Магнитные и структурные свойства наночастиц оксидов железа, полученных методом термического разложения соединений-прекурсоров в растворе

Методом термического разложения олеата железа(III) при разном соотношении олеиновой кислоты и октадецена-1 получены наночастицы оксидов железа (НЧОЖ). Методом просвечивающей электронной микроскопии (ПЭМ) определены морфология и размер полученных НЧОЖ. Все полученные наночастицы имели сферическую форму и диаметр 8–9 нм. Методом ИК-спектроскопии для всех синтезированных НЧОЖ установлено наличие олеатной оболочки, обеспечивающей стабильность коллоидных растворов этих наночастиц в неполярных растворителях. Для полученных НЧОЖ с помощью рентгеноструктурного анализа и магнитометрии определены размеры образованного оксидами железа кристаллического ядра. Сопоставлением с данными ПЭМ установлен размер олеатной защитной оболочки НЧОЖ, который хорошо согласуется с известными значениями.

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