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£¨1£©(CTAB, 1.00 g) was first dissolved in 50ml of pure water by heating.
£¨2£©After cooling to room temperature, aqueous ammonia (13ml) and ethanol (75 ml) were added.
£¨3£©The mixture was stirred for 15 min and TEOS (1.94 ml) added rapidly while stirring was continued.
£¨4£©TEOS (30 ml) and APTES (30 ml) were introduced 30 min later. The mixture was allowed to stir for 2h to give rise to white precipitates.
£¨5£©The solid product was filtered, washed with deionized water and methanol, and dried in air.
£¨6£©To remove the surfactant template (CTAB), the white powder was refluxed for 16h in a solution of 1.00ml of HCl (37%) and 80.00ml of methanol followed by extensively washing with deionized water and methanol.
        
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zcyjdd

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¸üÕýһϣ¬TEOS (30 ΢Éý) and APTES (΢Éý) were introduced 30 min later
3Â¥2014-02-28 17:49:15
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gaoxin7620

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TEOS (30 ml) and APTES (30 ml) were introduced 30 min later£¬Õâ¸öÁ¿Ò²Ì«ÏÅÈËÁ˰ɣ¬µÚÈý²½²»ÊÇÒѾ­¼Ó¹ýTEOSÁËÂ𣬵ÚËIJ½µ½µ×ÊÇʲôÒâ˼
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2Â¥2014-02-28 17:48:04
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ÒýÓûØÌû:
2Â¥: Originally posted by gaoxin7620 at 2014-02-28 17:48:04
TEOS (30 ml) and APTES (30 ml) were introduced 30 min later£¬Õâ¸öÁ¿Ò²Ì«ÏÅÈËÁ˰ɣ¬µÚÈý²½²»ÊÇÒѾ­¼Ó¹ýTEOSÁËÂ𣬵ÚËIJ½µ½µ×ÊÇʲôÒâ˼

¸üÕýһϣ¬TEOS (30 ΢Éý) and APTES (΢Éý) were introduced 30 min later
4Â¥2014-02-28 17:53:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

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ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by gaoxin7620 at 2014-02-28 17:48:04
TEOS (30 ml) and APTES (30 ml) were introduced 30 min later£¬Õâ¸öÁ¿Ò²Ì«ÏÅÈËÁ˰ɣ¬µÚÈý²½²»ÊÇÒѾ­¼Ó¹ýTEOSÁËÂ𣬵ÚËIJ½µ½µ×ÊÇʲôÒâ˼

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5Â¥2014-03-01 15:54:31
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