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231223s2005 xx ||||| 00| ||eng c |
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|a eng
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|a Huang, L
|e verfasserin
|4 aut
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|a Preparation of supported mesoporous thin films concerning template removal by supercritical fluid extraction
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 12.06.2006
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|a Date Revised 08.02.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Thin films of silicate MCM-41 and silicate MCM-48 have been prepared on porous ceramic supports by the hydrothermal method. A comparative study of template removal has been made on supported thin films and on powder. By supercritical fluid extraction (SFE) with CH(3)OH-modified CO(2), at least 78% of the template can be removed from as-synthesized materials at 85 degrees C. X-ray diffraction (XRD) observations indicate that the resulting supported thin films after SFE are structurally stable and ordered with a weak pore contraction. The advantages of SFE over calcination in template removal are presented with a series of results obtained on supported thin films and on powder by XRD and N(2) adsorption-desorption
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|a Letter
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|a Poh, C
|e verfasserin
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|a Ng, S C
|e verfasserin
|4 aut
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|a Hidajat, K
|e verfasserin
|4 aut
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|a Kawi, S
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 21(2005), 4 vom: 15. Feb., Seite 1171-4
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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| 773 |
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|g volume:21
|g year:2005
|g number:4
|g day:15
|g month:02
|g pages:1171-4
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|d 21
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|e 4
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|h 1171-4
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