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Preparation and physical properties of zeolite, zeolite-like single crystals and zeolite-based nanocomposite materialsстатья Глава в книге
- Авторы: Solovyev V.G., Ivanova M.S., Pan'kova S.V., Trifonov S.V., Veisman V.L.
- Сборник: Handbook of zeolites: structure, properties and applications
- Том: 21
- Глава в коллективной монографии
- Год издания: 2009
- Издательство: Nova Science Publishers
- Местоположение издательства: Hauppauge, NY, United States
- Первая страница: 77
- Последняя страница: 99
- Аннотация: Zeolites are well-known regular crystalline porous dielectrics, which can be used as host matrices to design a wide variety of unique nanocomposites by infiltration of their voids and channels with guest substances. AFI zeolite-like aluminophosphates ( AlPO4 - 5 ) are very convenient for this purpose because their framework with one dimensional nanochannels is free from exchangeable cations. AFI single crystals with a high optical quality have been grown and characterized by electrical and optical measurements. Electrical and photoelectric properties of small ( 20 ÷ 100 microns ) zeolite single crystals have been studied by direct-current (DC) measurements, using tin or bismuth droplets as the electrodes or attached gold contacts. Zeolite-based nanocomposite materials containing regular arrays of indium, selenium, iodine, cadmium sulphide, sodium nitrite or nitrate nanoparticles in types A, X, mordenite zeolite and AFI zeolite-like porous matrices were prepared and characterized by optical absorption, diffuse reflectance spectroscopy, electrical and photoelectrical measurements. Nanocomposite materials under study demonstrate pronounced quantum size effects (blue shifts of the absorption, diffuse reflectance and photoconductivity spectra as compared with bulk guest materials). © 2009 by Nova Science Publishers, Inc. All rights reserved.
- Добавил в систему: Панькова Светлана Витиславовна