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李怡lily

金虫 (小有名气)

[求助] 请教人造沸石和MCM-41的区别

请教人造沸石和MCM-41的区别是什么,望高手指点,解答,不胜感激。
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inorganic

木虫 (小有名气)

【答案】应助回帖

★ ★ ★
感谢参与,应助指数 +1
李怡lily: 金币+3, ★有帮助, 谢谢帮助哦, 2012-07-05 15:02:35
沸石属于微孔材料,MCM41是一种介孔材料,按IUPAC的定义,孔径0.2-2纳米为微孔,2-50nm为介孔。孔径不同。

另外,沸石是一种晶体材料,是结晶的硅铝酸盐,具有长程有序结构,而MCM41等介孔材料具有有序的孔道,无序的孔壁,导致其水热稳定性与催化活性不如沸石。

应该还有其他的区别,我就先抛砖引玉啦。
2楼2012-07-05 04:03:55
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