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Recently, it has shown that silicon leaching can be also used to fabricate octadecasil nanocrystals (10¨C25 nm) with a high degree of intercrystalline porosity and a preserved structure.

[ Last edited by hua56441 on 2011-2-16 at 16:30 ]

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octadecasil ÄÉÃ×¾§Ìå

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4Â¥2011-02-16 16:56:46
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octadecasil nanocrystals£º°ËdecasilÄÉÃ×¾§Ìå

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2Â¥2011-02-16 16:31:44
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hua56441

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Originally posted by 8814402 at 2011-02-16 16:31:44:
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octa °Ë£¬°ËÃæÌå
octadecasil nanocrystals£º°ËdecasilÄÉÃ×¾§Ìå

Clathrasils
ÊÇ»¯ºÏÎïÂð£¿ÔÚchemical bookÍø¶¼²é²»µ½

As noted above, desilication mostly creates intracrystalline
porosity in channel-type zeolites such as ZSM-5, ZSM-12,
mordenite, and beta. Recently, it has shown that silicon
leaching can be also used to fabricate octadecasil nanocrystals
(10¨C25 nm) with a high degree of intercrystalline porosity
and a preserved structure.
114
Clathrasils, i.e.
zeolite-related materials consisting of window-connected
cages, are impenetrable to typical sorbate molecules such as
N2 or reactants such as hydrocarbons, and hence have no
prospective for catalytic applications. The zero-dimensional
character of these materials conditions the alkaline to operate
in a different manner, as the cages cannot be accessed.
Therefore, instead of attaining perforated crystals as in
channel-type zeolites, clathrasil crystals are fragmented and
peeled by the base, resulting in nanosized crystals. This widens
the scope of these compounds, opening room for application
as catalysts and/or catalyst supports
3Â¥2011-02-16 16:38:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Recently, it has shown that silicon leaching can be also used to fabricate octadecasil nanocrystals (10¨C25 nm) with a high degree of intercrystalline porosity and a preserved structure.
½üÀ´£¬ÒѾ­ÓÐ×ÊÁÏÏÔʾ¹è½þ³öÒ²¿ÉÒÔÓÃÀ´ÖÆ×÷¾§¼ä¿×϶¶È¸ß¡¢½á¹¹Îȶ¨µÄoctadecasil ÄÉÃ×¾§Ìå (10¨C25 nm)¡£
5Â¥2011-02-16 17:01:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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