HCl用量对介孔二氧化硅形貌的影响OA北大核心CSCDCSTPCD
Influence of HCl Content on the Morphology of Mesoporous Silica
以十六烷基三甲基溴化铵为模板剂、甲酰胺为共溶剂、正硅酸乙酯为硅源,室温下在HCl介质中合成了纤维状、圆盘状和花卉状等多种混合形貌的介孔二氧化硅.采用XRD、SEM、TEM等方法对样品进行表征,探讨了HCl用量对产物形貌的影响.结果表明,增加HCl用量会导致孔间距减小,但有助于提高介孔结构有序性和纤维状形貌的产率；过低的HCl用量条件下介孔二氧化硅不能形成规则外形.
Mesoporous silica with mixed morphology including fibers, discoids, flowers were synthesized using cetyltrimethylammonium bromide ( CTAB ) as template, formamide as cosolvent and tetraethoxysilcane (TEOS) as the source of inorganic silica in strong acid media with HC1 at room temperature. The influence of HC1 on the structure and micro-morphology of samples were investigated by means of XRD, SEM and TEM. The results indicated that with the content of HC1 inc…查看全部>>
陈凤英;李湘祁;李哲韬;邵艳群
福州大学材料科学与工程学院,福州350108福州大学材料科学与工程学院,福州350108福州大学材料科学与工程学院,福州350108福州大学材料科学与工程学院,福州350108
通用工业技术
介孔二氧化硅HCl形貌
mesoporous silica HC1 morphology
《硅酸盐通报》 2012 (2)
431-434,4
福建省自然科学基金资助項目(2009J01239)
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