Transport Properties of Modified Nafion Membranes: Effect of Zeolite and Precursors Научная публикация
| Журнал |
Solid State Ionics
ISSN: 0167-2738 |
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| Вых. Данные | Год: 2010, Том: 180, Номер: 40, Страницы: 1694-1701 Страниц : 8 DOI: 10.1016/j.ssi.2009.11.009 | ||||
| Ключевые слова | Nafion, Nanocomposites, Silica, Tetraalkylammonium cations, Transport properties, Zeolite | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Российский фонд фундаментальных исследований | 07-08-91580 |
| 2 | Российский фонд фундаментальных исследований | 08-08-00660 |
Реферат:
Fe-silicalite/Nafion composite membranes with high relative selectivity (as defined by the proton conductivity to methanol permeability ratio) of 5.4 and proton conductivity of 11 mS cm− 1 were prepared by in situ hydrothermal synthesis of the zeolite within the pores of Nafion membranes. The effects of the zeolite structure and precursor structure were evaluated in terms of transport properties and acidity levels for a series of Nafion membranes modified with silica and tetrapropylammonium (TPA) and tetrabutylammonium (TBA) cations. Introduction of up to 40% (w/w) of silica vs. pure Nafion shows little effect on the transport and acidity properties of the composite membranes. Introduction of tetraalkylammonium (TAA) cations reduces water uptake of the membranes, and results in the appearance of protons that are inaccessible for titration in water media. The selectivity of the composite membranes increases in the order: SiO2/Nafion < TAA/Nafion < Fe-silicalite/Nafion.
Библиографическая ссылка:
Krivobokov I.M.
, Gribov E.N.
, Okunev A.G.
, Spoto G.
, Parmon V.N.
Transport Properties of Modified Nafion Membranes: Effect of Zeolite and Precursors
Solid State Ionics. 2010. V.180. N40. P.1694-1701. DOI: 10.1016/j.ssi.2009.11.009 WOS Scopus РИНЦ OpenAlex CAPlusCA
Transport Properties of Modified Nafion Membranes: Effect of Zeolite and Precursors
Solid State Ionics. 2010. V.180. N40. P.1694-1701. DOI: 10.1016/j.ssi.2009.11.009 WOS Scopus РИНЦ OpenAlex CAPlusCA
Даты:
| Поступила в редакцию: | 27 мая 2009 г. |
| Принята к публикации: | 10 нояб. 2009 г. |
| Опубликована online: | 3 дек. 2009 г. |
| Опубликована в печати: | 29 янв. 2010 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000275210700014 |
| ≡ Scopus: | 2-s2.0-74149089695 |
| ≡ РИНЦ: | 15313070 |
| ≡ OpenAlex: | W2002611256 |
| ≡ Chemical Abstracts: | 2010:95387 |
| ≡ Chemical Abstracts (print): | 153:627885 |