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| 复合模板剂制备有序介孔氧化铝 | |
| 引用本文： | 李志平,赵瑞红,郭奋,陈建峰. 复合模板剂制备有序介孔氧化铝[J]. 北京化工大学学报(自然科学版), 2008, 35(3): 23-26 |
| 作者姓名： | 李志平 赵瑞红 郭奋 陈建峰 |
| 作者单位： | 北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室,北京,100029;河北科技大学化学与制药与工程学院,石家庄,河北,050018;北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室,北京,100029 |
| 摘 要： | 采用溶胶-凝胶法以异丙醇铝为铝源，乙醇为溶剂，非离子表面活性剂TritonX-100和三嵌段共聚物P123为复合模板剂，制备了有序介孔氧化铝。用PSD、XRD、TEM等测试技术对样品进行了结构表征，实验结果表明，合成的有序介孔氧化铝比表面积大于500m2/g，孔容超过1.0cm3/g，孔径分布窄（2～12nm），形成的蠕虫状孔道具有一定的有序性，与采用单一模板剂P123制得的介孔氧化铝相比具有比表面积大，孔分布窄，有序性好的优点。最佳模板剂配比为 n(TritonX-100)∶n(P123)=3∶1。 |
| 关 键 词： | 三嵌段共聚物 非离子表面活性剂 复合模板剂 有序介孔氧化铝 |
| 收稿时间： | 2007-12-11 |
| 修稿时间： | 2007-12-11 |
Preparation of ordered mesoporous alumina using a mixed template |
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| LI ZhiPing,ZHAO RuiHong,GUO Fen,CHEN JianFeng. Preparation of ordered mesoporous alumina using a mixed template[J]. Journal of Beijing University of Chemical Technology, 2008, 35(3): 23-26 | |
| Authors: | LI ZhiPing ZHAO RuiHong GUO Fen CHEN JianFeng |
| Affiliation: | 1. Key Lab for Nanomaterials, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029; 2. School of Chemistry and Pharmaceutical Engineering, Hebei University of Scien ce and Technology, Shijiazhuang Hebei 050018, China |
| Abstract: | Ordered mesoporous alumina has been synthesized by a sol-gel method using aluminium iso-propoxide as aluminium source, ethanol as solvent, and a mixed surfactant template (P123 and TritonX-100). The product was characterized by BET, TEM and XRD. The results showed that the mesoporous alumina samples produced can have surface areas of up to 500m2/g, pore volumes over 1.0cm3/g, and a narrow pore size distribution 2-12nm. A partially-ordered worm-like pore structure was observed. The optimum template mixture ratio was found to be n(TritonX-100): n(P123)=3∶1. The samples have higher surface area, narrower pore distribution and better ordered pores than mesoporous alumina samples synthesized using a single P123 template. |
| Keywords: | PEO-PPO-PEO block copolymer nonionics template mixed template ordered mesoporous alumina |
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