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852609957

银虫 (正式写手)

[求助] 棒状介孔硅的制备

本人小菜鸟,想制备棒状介孔硅,但是看文献后,自己计算的CTAB和TEOS的摩尔比和文献不同,希望这里的大侠给指教,或者有相关的文献或者方法,请赐教!小弟拜谢!
Different shaped MSNs were synthesized by condensation under diluted TEOS
and low surfactant conditions with NH3H2O as a catalyst. Briefly, CTAB was dis-solved in 70 ml H2O, and NH3H2O (28%-30%) was added with stirring for 1 h.TEOS was then added with vigorous stirring for 4 h at room temperature. The shapeof MSNs was controlled by the molar ratio of the reaction mixture. For sphere-shaped particles, the molar ratio of the reaction mixture was 100 (CTAB): 1000(H2O): 10 (NH3H2O): 0.7 (TEOS), while the molar ratio of short rod and long rod-shaped particles was 200 (CTAB): 1000 (H2O): 20 (NH3H2O): 1.4(TEOS) and 400(CTAB): 1000 (H2 O): 20 (NH 3H2O): 2.8 (TEOS), respectively.
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ychan

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这个还是很好做的,我做出来长径比从很小,可以直至做到非常大。而且单分散。
个人主页:http://mesoporous.weebly.com/
2楼2012-04-26 22:10:21
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852609957

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2楼: Originally posted by ychan at 2012-04-26 22:10:21:
这个还是很好做的,我做出来长径比从很小,可以直至做到非常大。而且单分散。

大侠能指教一下我吗,我想要投料的关系,我现在按文献的投料,计算不出摩尔比。谢谢!请指教!
3楼2012-04-27 08:53:26
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852609957

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引用回帖:
2楼: Originally posted by ychan at 2012-04-26 22:10:21
这个还是很好做的,我做出来长径比从很小,可以直至做到非常大。而且单分散。

你好,我想请教一下,这个只要控制TEOS和CTAB的投料比,就可以了吗?谢谢!
4楼2014-04-15 10:54:18
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