Cooperative Effect of PdOx and SiO2 in CO Detection by SnO2-Based Gas Sensors: Thorough Operando DRIFTS Analysis Full article
Journal |
Journal of Alloys and Compounds
ISSN: 0925-8388 , E-ISSN: 1873-4669 |
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Output data | Year: 2022, Volume: 893, Article number : 162297, Pages count : 9 DOI: 10.1016/j.jallcom.2021.162297 | ||||||
Tags | Carbon monoxide; DRIFTS; Gas sensor; PdOx catalytic clusters; Silicon dioxide; Tin dioxide | ||||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Science Foundation | 19-13-00245 (АААА-А19-119050790037-4) |
Abstract:
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. © 2021 Elsevier B.V.
Cite:
Gulevich D.
, Gerasimov E.
, Marikutsa A.
, Khmelevsky N.
, Rumyantseva M.
Cooperative Effect of PdOx and SiO2 in CO Detection by SnO2-Based Gas Sensors: Thorough Operando DRIFTS Analysis
Journal of Alloys and Compounds. 2022. V.893. 162297 :1-9. DOI: 10.1016/j.jallcom.2021.162297 WOS Scopus РИНЦ
Cooperative Effect of PdOx and SiO2 in CO Detection by SnO2-Based Gas Sensors: Thorough Operando DRIFTS Analysis
Journal of Alloys and Compounds. 2022. V.893. 162297 :1-9. DOI: 10.1016/j.jallcom.2021.162297 WOS Scopus РИНЦ
Dates:
Submitted: | Aug 12, 2021 |
Accepted: | Oct 7, 2021 |
Published online: | Oct 9, 2021 |
Published print: | Feb 10, 2022 |
Identifiers:
Web of science | WOS:000711212800001 |
Scopus | 2-s2.0-85117613567 |
Elibrary | 47515870 |
Chemical Abstracts | 2021:2314553 |
OpenAlex | W3203906041 |