Влияние ионов Sr2+ на газочувствительные свойства LaCrO3 и GdCrO3
DOI:
https://doi.org/10.17308/kcmf.2026.28/13591Ключевые слова:
нанопорошки, перовскиты, газочувствительные свойства, метод Печини, LaCrO3, GdCrO3, допирование Sr2+Аннотация
Цель статьи: В работе исследованы тонкие пленки полученные из нанопорошков La1–xSrxCrO3–δ и Gd1–xSrxCrO3–δ (x = 0.05, 0.10 и 0,15), синтезированных измененным цитратным методом.
Экспериментальная часть: Проведён анализ фазового состава пленок, структуры и газочувствительных свойств в присутствии угарного газа. Допирование ионами Sr2+ приводит к росту дефектности наночастиц, за счет образования вакансий в кислородной подрешетке. Данное явление благоприятно сказывается на их газочувствительных свойствах.
Выводы: Установлено, что образцы состава La0.9Sr0.1CrO3–δ и Gd0.9Sr0.1CrO3–δ демонстрируют наибольший сенсорный отклик при 180 оС, 2.26 и 1.78 соответственно. Полученные результаты подтверждают перспективность использования этих материалов в качестве газовых сенсоров
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