FT-IR Spectroscopic Studies of Hydrocarbon Trapping in Ag+-ZSM-5 for Gasoline Engines under Cold-Start Conditions Научная публикация
| Журнал |
Applied Catalysis B: Environmental
ISSN: 0926-3373 |
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| Вых. Данные | Год: 2001, Том: 35, Номер: 2, Страницы: 125-136 Страниц : 12 DOI: 10.1016/S0926-3373(01)00247-8 | ||||
| Авторы |
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Реферат:
A detailed study of adsorption of automobile exhaust hydrocarbons in Ag+-exchanged zeolites under cold-start conditions (room temperature and in the presence of water) was carried out with FT-IR spectroscopy, using toluene and propylene as probes. The results show that exchanged Ag+ in zeolites is unique for trapping olefin and aromatic hydrocarbons due to its resistance to water adsorption. In contrast, exchanged Cu2+ in zeolites, which has good hydrocarbon trapping properties under dry conditions, does not trap hydrocarbons under wet conditions. Here, solvation of Cu2+ screens the interactions of the cation with adsorbed hydrocarbons. The results also show that, in addition to the nature of the cation, the structure of the zeolite also plays a role in hydrocarbon trapping. Aging at high temperatures, with water vapor (∼10%) and SO2 (∼15 ppm), leads to a decrease of the trapping centers in the zeolites due to framework dealumination.
Библиографическая ссылка:
Liu X.
, Lampert J.K.
, Arendarskii D.A.
, Farrauto R.J.
FT-IR Spectroscopic Studies of Hydrocarbon Trapping in Ag+-ZSM-5 for Gasoline Engines under Cold-Start Conditions
Applied Catalysis B: Environmental. 2001. V.35. N2. P.125-136. DOI: 10.1016/S0926-3373(01)00247-8 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact
FT-IR Spectroscopic Studies of Hydrocarbon Trapping in Ag+-ZSM-5 for Gasoline Engines under Cold-Start Conditions
Applied Catalysis B: Environmental. 2001. V.35. N2. P.125-136. DOI: 10.1016/S0926-3373(01)00247-8 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact
Даты:
| Поступила в редакцию: | 9 апр. 2001 г. |
| Принята к публикации: | 29 июл. 2001 г. |
| Опубликована online: | 20 нояб. 2001 г. |
| Опубликована в печати: | 28 дек. 2001 г. |
Идентификаторы БД:
| Web of science: | WOS:000172594800005 |
| Scopus: | 2-s2.0-0035965933 |
| РИНЦ: | 13374875 |
| Chemical Abstracts: | 2001:861363 |
| Chemical Abstracts (print): | 136:188267 |
| OpenAlex: | W2055966565 |
| Sciact: | 9272 |