Model Sulfur-Resistant NSR Catalysts: An XPS Study of the Interaction of BaO/TiO2-ZrO2 and Pt-BaO/TiO2-ZrO2 with NO2 Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2015, Volume: 56, Number: 4, Pages: 540-548 Pages count : 9 DOI: 10.1134/S0023158415040163 | ||||
| Tags | barium nitrate, barium nitrite, interaction with NO<inf>2</inf>, model NSR catalysts, platinum oxides, X-ray photoelectron spectroscopy | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 14-23-00146 |
Abstract:
The interaction of NO2 with BaO/TiO2-ZrO2 and Pt-BaO/TiO2-ZrO2 model NO x storage-reduction (NSR) catalysts prepared on the surface of FeCrAl alloy substrates has been investigated by X-ray photoelectron spectroscopy. The action of nitrogen dioxide on these catalysts at room temperature causes the consecutive formation of surface barium nitrite and nitrate. Supposedly, NO2 reduction yielding barium nitrite at the early stages of the interaction is due to the oxidation of amorphous carbon impurities. The introduction of platinum into the catalyst accelerates nitrogen dioxide sorption. On being exposed to NO2 for a long time, platinum oxidizes to PtO2. This process is more pronounced in the sample containing freshly deposited platinum. Heat treatment of this sample in a vacuum, which coarsens the platinum particles, makes them more resistant to oxidation.
Cite:
Smirnov M.Y.
, Kalinkin A.V.
, Nazimov D.A.
, Toktarev A.V.
, Bukhtiyarov V.I.
Model Sulfur-Resistant NSR Catalysts: An XPS Study of the Interaction of BaO/TiO2-ZrO2 and Pt-BaO/TiO2-ZrO2 with NO2
Kinetics and Catalysis. 2015. V.56. N4. P.540-548. DOI: 10.1134/S0023158415040163 WOS Scopus РИНЦ ANCAN OpenAlex
Model Sulfur-Resistant NSR Catalysts: An XPS Study of the Interaction of BaO/TiO2-ZrO2 and Pt-BaO/TiO2-ZrO2 with NO2
Kinetics and Catalysis. 2015. V.56. N4. P.540-548. DOI: 10.1134/S0023158415040163 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Смирнов М.Ю.
, Калинкин А.В.
, Назимов Д.А.
, Токтарев А.В.
, Бухтияров В.И.
Модельные сероустойчивые NSR-катализаторы: исследование взаимодействия BaO/TiO2 ZrO2 и Pt BaO/TiO2 ZrO2 с NO2 методом РФЭС
Кинетика и катализ. 2015. Т.56. №4. С.547-555. DOI: 10.7868/S0453881115040164 РИНЦ OpenAlex
Модельные сероустойчивые NSR-катализаторы: исследование взаимодействия BaO/TiO2 ZrO2 и Pt BaO/TiO2 ZrO2 с NO2 методом РФЭС
Кинетика и катализ. 2015. Т.56. №4. С.547-555. DOI: 10.7868/S0453881115040164 РИНЦ OpenAlex
Dates:
| Submitted: | Nov 5, 2014 |
| Published print: | Jul 1, 2015 |
| Published online: | Jul 25, 2015 |
Identifiers:
| Web of science: | WOS:000358408700019 |
| Scopus: | 2-s2.0-84937944877 |
| Elibrary: | 23993213 |
| Chemical Abstracts: | 2015:1234220 |
| Chemical Abstracts (print): | 167:281463 |
| OpenAlex: | W1410127529 |