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Cooperative effect of PdOx and SiO2 in CO detection by SnO2-based gas sensors: thorough operando DRIFTS analysisстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 декабря 2021 г.
- Авторы: Gulevich Dayana, Gerasimov Evgeny, Marikutsa Artem, Khmelevsky Nikolay, Rumyantseva Marina
- Журнал: Journal of Alloys and Compounds
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 162297
- DOI: 10.1016/j.jallcom.2021.162297
- Аннотация: This work is devoted to the study of the joint effect of SiO2 and PdOx on the SnO2 sensor properties when detecting CO in dry and humid air. Nanocrystalline SnO2 was obtained by wet chemical synthesis, modification with SiO2 was effectuated during hydrothermal treatment, modification with PdOx was carried out by impregnation method. All sensitive materials characterized by XRD, low-temperature nitrogen adsorption, HRTEM, TPR-H2, XPS and IR spectroscopy. The sensor characteristics were studied when detecting CO in dry (RH = 1%) and humid (RH = 20%) air. Tin dioxide, jointly modified by SiO2 and PdOx, demonstrates the greatest sensitivity to CO in both dry and humid atmosphere. To explain the cooperative effect of PdOx and SiO2 in CO detection, the interaction of palladium modified samples with CO in dry and humid air was investigated by DRIFT spectroscopy in operando conditions.
- Добавил в систему: Румянцева Марина Николаевна
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