Вивчення динаміки адсорбції летких сполук на тонкодисперсних адсорбентах методом п’єзокварцового мікрозважування в імпульсному режимі
It is shown that the quartz crystal microbalance method can be utilized to study adsorption-desorption processes proceeding for several seconds and more. The pulse of sorbate vapor with half-width of a few seconds can be obtained by the injection of a dose of liqud sorbate at appropriate evaporator...
Збережено в:
| Дата: | 2012 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2012
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| Онлайн доступ: | https://www.cpts.com.ua/index.php/cpts/article/view/191 |
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| Назва журналу: | Chemistry, Physics and Technology of Surface |
Репозитарії
Chemistry, Physics and Technology of Surface| Резюме: | It is shown that the quartz crystal microbalance method can be utilized to study adsorption-desorption processes proceeding for several seconds and more. The pulse of sorbate vapor with half-width of a few seconds can be obtained by the injection of a dose of liqud sorbate at appropriate evaporator temperature and flow rate of carrier gas with the use of a device combined with the flow-through cell of the type of electronic nose. The use of piezoquartz resonator with a chemical coating based on a metal stearate, thiolate or cross-linked polymer is proposed as a simple, relatively quick-response sensor to control the current adsorbate concentration in gas phase. The method has been applied for determination of effective diffusion coefficients in the process of ethanol adsorption-desorption on fine dispersed macroporous sulfonic acid resin Amberlyst 15. |
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