Динамічна катіонна конфігурація полікатіон-декатіонованої форми цеоліту типу Х
Cations compensating the negative charges of zeolite alumina-oxygen tetrahedra are the active sites of zeolite catalysts. However, they are not fixed strong in separate zeolite structure positions but characterized by some freedom degrees. The activity of zeolite-based is catalyst formed not only by...
Збережено в:
| Дата: | 2013 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | Ukrainian |
| Опубліковано: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2013
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| Онлайн доступ: | https://www.cpts.com.ua/index.php/cpts/article/view/237 |
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| Назва журналу: | Chemistry, Physics and Technology of Surface |
Репозитарії
Chemistry, Physics and Technology of Surface| Резюме: | Cations compensating the negative charges of zeolite alumina-oxygen tetrahedra are the active sites of zeolite catalysts. However, they are not fixed strong in separate zeolite structure positions but characterized by some freedom degrees. The activity of zeolite-based is catalyst formed not only by their cation content but also by cation localization in the framework of zeolite crystal, and so the information concerning the cationic configuration of zeolite catalysts is of great importance for the activity of the samples. At the same time, the cation localization determination is not a simple problem because it needs using up-to-date physical methods frequently not accessible for the common investigator. Valuable information in this respect one can get from well learned method of ammonia thermoprogrammed desorption. |
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