kaz29Вестник Казахстанско-Британского технического университетаHerald of the Kazakh-British Technical University1998-66882959-8109Казахстанско-Британский Технический Университет10.55452/1998-6688-2025-22-2-301-311kaz29-2010Research ArticleФИЗИЧЕСКИЕ НАУКИPHYSICAL SCIENCESСИНТЕЗ И ИССЛЕДОВАНИЕ ГАЗОЧУВСТВИТЕЛЬНЫХ СВОЙСТВ ПЛЕНОК НА ОСНОВЕ ОКСИДА ОЛОВАSYNTHESIS AND STUDY OF GAS-SENSITIVE PROPERTIES OF FILMS BASED ON TIN OXIDEhttps://orcid.org/0000-0002-1280-2559ДмитриеваЕ.DmitiryevaE.

 к.ф.-м.н 

г. Алматы

Cand. Phys.-Math. Sc. 

Almaty

Astana

e.dmitrieva@sci.kzhttps://orcid.org/0000-0002-2286-3443БухваловД.BoukhvalovD.

к.ф.-м.н 

г. Алматы 

 Cand. Phys.-Math. Sc. 

Almaty

d.boukhvalov@sci.kzhttps://orcid.org/0000-0003-4813-8490КемелбековаА.KemelbekovaA.

PhD 

г. Алматы 

 PhD 

Almaty

a.kemelbekova@sci.kzhttps://orcid.org/0000-0002-3856-9054ШиловаО.ShilovaO.

 д.х.н. 

 г. Санкт-Петербург 

 Doct. of chemical sciences 

 Saint-Petersburg 

olgashilova@bk.ruФизико-технический институт, Satbayev University; ТОО «Manul Technologies»КазахстанInstitute of Physics and Technology, Satbayev University; ТОО «Manul Technologies»KazakhstanФизико-технический институт, Satbayev UniversityКазахстанInstitute of Physics and Technology, Satbayev UniversityKazakhstanИнститут химии силикатов Российской академии наукРоссияInstitute of Silicate Chemistry of Russian Academy of SiencesRussian Federation202506072025222301311Copyright © Дмитриева Е., Бухвалов Д., Кемелбекова А., Шилова О., 20252025Дмитриева Е., Бухвалов Д., Кемелбекова А., Шилова О.Dmitiryeva E., Boukhvalov D., Kemelbekova A., Shilova O.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik.kbtu.edu.kz/jour/article/view/2010

В статье исследованы тонкие пленки оксида олова (SnO₂), полученные на стеклянных подложках, с целью создания чувствительных элементов для газоанализаторов, работающих при комнатной температуре. Были использованы три пленкообразующие системы: раствор SnCl₄*5H₂O в этаноле, гидрозоль гидроксида олова и их смесь. Пленки формировались методом спрей-пиролиза при 400 °C. Проведены рентгеноструктурный анализ и сканирующая электронная микроскопия, установлено, что размеры кристаллитов составляют 6–13 нм. Исследована чувствительность пленок к парам воды. Наиболее высокая чувствительность(R₀/Rпар= 3,75) и быстродействие (менее 1 секунды) наблюдаются у пленок, полученных из золя. Моделирование адсорбции на поверхностях t-SnO₂ (001) и c-SnO₂ (111) показало, что структура c-SnO₂ перспективна для детектирования угарного газа благодаря стабильным сенсорным свойствам в условиях высокой влажности. Полученные результаты представляют интерес для разработки новых сенсоров газов.

The article looks at how to make sensitive parts for gas analyzers that work at room temperature using thin films of tin oxide (SnO2) that are deposited on glass substrates. Three precursor systems were employed: a solution of SnCl4*5H2O in ethanol, a hydrosol of tin hydroxide, and a combination of them. The films were formed by spray pyrolysis at 400°C. X-ray structural analysis and scanning electron microscopy were performed; it was found that the crystallite sizes were 6–13 nm. We studied the sensitivity of the films to water vapor. The highest sensitivity (R0/Rvapor = 3.75) and response time (less than 1 second) were observed in films obtained from the sol. When adsorption on t-SnO2 (001) and c-SnO2 (111) surfaces were modeled, it was found that the c-SnO2 structure is better for detecting carbon monoxide because it stays stable in high humidity. The results obtained are of interest in the development of new gas sensors.

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The authors declare that there are no conflicts of interest present.