Synergy Effect of Au and SiO2 Modification on SnO2 Sensor Properties in VOCs Detection in Humid Air Научная публикация
Журнал |
Nanomaterials
, E-ISSN: 2079-4991 |
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Вых. Данные | Год: 2020, Том: 10, Номер: 4, Номер статьи : 813, Страниц : 17 DOI: 10.3390/nano10040813 | ||||||||
Ключевые слова | Au clusters; Gas sensor; Humid air; Hydrothermal synthesis; Silicon dioxide; Thermal stability; Tin dioxide; Volatile organic compounds | ||||||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский научный фонд | 19-13-00245 (АААА-А19-119050790037-4) |
Реферат:
Nanocomposites based on Au-and SiO2-modified SnO2 were studied as sensitive materials for ethanol and benzene detection in dry (RH = 1%) and humid (RH = 20%) air. Modification of SnO2 by amorphous SiO2 (13 mol.%) was effectuated by hydrothermal synthesis; modification by Au nanoparticles (1 wt.%) was carried out via impregnation by citrate-stabilized Au sol. The composition of the samples was determined by X-ray fluorescent spectroscopy and energy-dispersive X-ray spectroscopy. The microstructure was characterized by XRD, HRTEM, and low-temperature nitrogen adsorption. The surface groups were investigated by XPS, TPR-H2, and FTIR spectroscopy. DRIFT spectroscopy was performed to investigate the interaction between ethanol and the surface of the synthesized materials. Studies of the sensor properties have shown that in all cases the most sensitive is the SnO2/SiO2-Au nanocomposite. This material retains high sensitivity even in a humid atmosphere. The obtained results are discussed in terms of the synergistic effect of two modifiers (Au and SiO2) in the formation of sensor properties of SnO2/SiO2– Au nanocomposites. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Библиографическая ссылка:
Gulevich D.
, Rumyantseva M.
, Gerasimov E.
, Khmelevsky N.
, Tsvetkova E.
, Gaskov A.
Synergy Effect of Au and SiO2 Modification on SnO2 Sensor Properties in VOCs Detection in Humid Air
Nanomaterials. 2020. V.10. N4. 813 :1-17. DOI: 10.3390/nano10040813 WOS Scopus РИНЦ
Synergy Effect of Au and SiO2 Modification on SnO2 Sensor Properties in VOCs Detection in Humid Air
Nanomaterials. 2020. V.10. N4. 813 :1-17. DOI: 10.3390/nano10040813 WOS Scopus РИНЦ
Файлы:
Полный текст от издателя
Даты:
Поступила в редакцию: | 30 мар. 2020 г. |
Опубликована в печати: | 1 апр. 2020 г. |
Принята к публикации: | 19 апр. 2020 г. |
Опубликована online: | 23 апр. 2020 г. |
Идентификаторы БД:
Web of science | WOS:000539577200216 |
Scopus | 2-s2.0-85083846008 |
РИНЦ | 43277400 |
Chemical Abstracts | 2020:1073163 |
Chemical Abstracts (print) | 173:882640 |
PMID (PubMed) | 32340380 |
OpenAlex | W3020399821 |