Comparative XPS Study of Al2O3 and CeO2 Sulfation in Reactions with SO2, SO2 + O2, SO2 + H2O, and SO2 + O2 + H2O Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2003, Volume: 44, Number: 4, Pages: 575-582 Pages count : 8 DOI: 10.1023/A:1025158504664 | ||||
| Tags | Aluminum; Sulfate; Sulfide; Platinum; Al2O3 | ||||
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Abstract:
The interactions of Al2O3, CeO2, Pt/Al2O3, and Pt/CeO2 films with SO2, SO2 + H2O, SO2 + O2, and SO2 + O2 + H2O in the temperature range 300–673 K at the partial pressures of SO2, O2, and H2O equal to 1.5 × 102, 1.5 × 102, and 3 × 102 Pa, respectively, were studied using X-ray photoelectron spectroscopy. The formation of surface sulfite at T ≥ 473 K (the S 2p3/2 binding energy (Eb) is 167.5 eV) and surface sulfate at T ≥ 573 K (Eb = 169.2 eV) was observed in the reactions of Al2O3 and CeO2 with SO2. The formation of sulfates on the surface of CeO2 occurred much more effectively than in the case of Al2O3, and it was accompanied by the reduction of Ce(IV) to Ce(III). The formation of aluminum and cerium sulfates and sulfites on model Pt/Al2O3 and Pt/CeO2 catalysts occurred simultaneously with the formation of surface platinum sulfides (Eb of S 2p3/2 is 162.2 eV). The effects of oxygen and water vapor on the nature and yield of sulfur-containing products were studied.
Cite:
Smirnov M.Y.
, Kalinkin A.V.
, Pashis A.V.
, Sorokin A.M.
, Noskov A.S.
, Bukhtiyarov V.I.
, Kharas K.C.
, Rodkin M.A.
Comparative XPS Study of Al2O3 and CeO2 Sulfation in Reactions with SO2, SO2 + O2, SO2 + H2O, and SO2 + O2 + H2O
Kinetics and Catalysis. 2003. V.44. N4. P.575-582. DOI: 10.1023/A:1025158504664 WOS Scopus РИНЦ ANCAN OpenAlex
Comparative XPS Study of Al2O3 and CeO2 Sulfation in Reactions with SO2, SO2 + O2, SO2 + H2O, and SO2 + O2 + H2O
Kinetics and Catalysis. 2003. V.44. N4. P.575-582. DOI: 10.1023/A:1025158504664 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Смирнов М.Ю.
, Калинкин А.В.
, Пашис А.В.
, Сорокин А.М.
, Носков А.С.
, Бухтияров В.И.
, Харас К.С.
, Родкин М.А.
Сравнительное исследование методом РФЭС сульфатации Аl2O3 и СеO2 при взаимодействии с SO2, SO2 + O2, SO2 + H2O и SO2 + O2 + H2O
Кинетика и катализ. 2003. Т.44. №4. С.629-637. РИНЦ
Сравнительное исследование методом РФЭС сульфатации Аl2O3 и СеO2 при взаимодействии с SO2, SO2 + O2, SO2 + H2O и SO2 + O2 + H2O
Кинетика и катализ. 2003. Т.44. №4. С.629-637. РИНЦ
Dates:
| Submitted: | Oct 9, 2002 |
| Published print: | Jul 1, 2003 |
Identifiers:
| Web of science: | WOS:000185169100020 |
| Scopus: | 2-s2.0-0041335456 |
| Elibrary: | 13438590 |
| Chemical Abstracts: | 2003:622300 |
| Chemical Abstracts (print): | 140:19276 |
| OpenAlex: | W2525274716 |