Correlation Between the Cu/Al Value and Activity of Cu-ZSM-5 Catalysts and the Chemical Nature of the Starting Copper Salt Научная публикация
| Журнал |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Вых. Данные | Год: 2005, Том: 46, Номер: 4, Страницы: 613-617 Страниц : 4 DOI: 10.1007/s10975-005-0116-6 | ||
| Ключевые слова | Zeolite; Catalytic Activity; Salt Concentration; Chemical Nature; Ammonia Solution | ||
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| Организации |
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Реферат:
Cu-ZSM-5 catalysts for the selective reduction of NO with propane were obtained by ion exchange between H-ZSM-5 zeolite and an aqueous or aqueous ammonia solution of a copper salt (acetate or nitrate). Their Cu/Al values (%) defined as 2 × 100 (Cu : Al), where Cu : Al is the copper-to-aluminum atomic ratio, were determined as a function of ion exchange pH, which was varied by changing the copper salt and solution concentration. Cu/Al is primarily determined by the chemical nature of the starting copper salt. For a given salt, it is governed by the salt concentration in the solution. At a fixed salt concentration, Cu/Al is always larger for copper acetate than for copper nitrate. It can be raised to ≫100% by using an aqueous ammonia solution of a copper salt. Furthermore, it increases with increasing Si/Al in the starting zeolite if the other ion exchange conditions are equal. Irrespective of preparation conditions, the catalytic activity of Cu-ZSM-5 grows in proportion to Cu/Al. It peaks at Cu/Al ∼ 100% and then remains constant up to Cu/Al ∼ 400%. In order to achieve Cu/Al ∼ 100%, it is most appropriate to use a copper acetate solution.
Библиографическая ссылка:
Tsikoza L.T.
, Matus E.V.
, Ismagilov Z.R.
, Sazonov V.A.
, Kuznetsov V.V.
Correlation Between the Cu/Al Value and Activity of Cu-ZSM-5 Catalysts and the Chemical Nature of the Starting Copper Salt
Kinetics and Catalysis. 2005. V.46. N4. P.613-617. DOI: 10.1007/s10975-005-0116-6 WOS Scopus РИНЦ CAPlusCA OpenAlex
Correlation Between the Cu/Al Value and Activity of Cu-ZSM-5 Catalysts and the Chemical Nature of the Starting Copper Salt
Kinetics and Catalysis. 2005. V.46. N4. P.613-617. DOI: 10.1007/s10975-005-0116-6 WOS Scopus РИНЦ CAPlusCA OpenAlex
Оригинальная:
Цикоза Л.Т.
, Матус Е.В.
, Исмагилов З.Р.
, Сазонов В.А.
, Кузнецов В.В.
Влияние химической природы исходной соли меди на Cu/Al и активность катализаторов Сu/ZSM-5
Кинетика и катализ. 2005. Т.46. №4. С.652-656. RSCI РИНЦ
Влияние химической природы исходной соли меди на Cu/Al и активность катализаторов Сu/ZSM-5
Кинетика и катализ. 2005. Т.46. №4. С.652-656. RSCI РИНЦ
Даты:
| Поступила в редакцию: | 1 дек. 2003 г. |
| Опубликована в печати: | 1 июл. 2005 г. |
Идентификаторы БД:
| Web of science: | WOS:000231790000020 |
| Scopus: | 2-s2.0-24044527524 |
| РИНЦ: | 13490769 |
| Chemical Abstracts: | 2005:951307 |
| Chemical Abstracts (print): | 143:291144 |
| OpenAlex: | W2012586899 |