AMNE:(ENGINEERING AND TECHNOLOGY) AMNE:(Chemical Engineering) AMNE:(Chemical Process Engineering)
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Growth of silicalite-1 films on gold substrates
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- Mintova, S. (author)
- Luleå tekniska universitet
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- Valtchev, V. (author)
- Bulgarian Academy of Sciences
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- Engström, V. (author)
- Luleå tekniska universitet
- show more...
- Sterte, Johan (author)
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- (creator_code:org_t)
- 1997
- 1997
- English.
- In: Microporous Materials. - 0927-6513 .- 1873-3107. ; 11:3-4, s. 149-160
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The crystallization of thin continuous silicalite-1 films on modified gold surfaces prepared at 100°C in clear precursor solutions has been studied by grazing angle X-ray diffractometry, infrared spectroscopy, dynamic light scattering, scanning electron microscopy, Kr adsorption and ellipsometry. The gold surfaces were pre-treated with a silane coupling agent, gamma-mercaptopropyltrimethoxysilane, and hydrolysed in an acidic solution, pH < 4, to create a modified negatively charged interface on which positively charged colloidal silicalite-1 seed crystals were adsorbed. The colloidal seed crystals are believed to be preferentially adsorbed with their {010} face parallel to the Au surface. Continued growth of the oriented seed crystals in a following hydrothermal step results in the formation of a continuous thin oriented crystalline film. The mechanism for the formation of silicalite-1 films on Au is discussed
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
Keyword
- Chemical Technology
- Kemisk teknologi
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- ref (subject category)
- art (subject category)
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- Luleå University of Technology
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