| 液晶模板法制备Au纳米线 |
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| 引用本文： | 张冬柏,齐利民,程虎民,马季铭.液晶模板法制备Au纳米线[J].高等学校化学学报,2003,24(12):2143-2146. |
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| 作者姓名： | 张冬柏 齐利民 程虎民 马季铭 |
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| 作者单位： | 北京大学化学与分子工程学院, 分子动态与稳定结构国家重点实验室, 北京 100871 |
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| 基金项目： | 国家自然科学基金 (批准号 :2 0 0 0 3 0 0 1,2 0 2 3 3 0 10 )，教育部优秀博士论文作者专项基金 (批准号 :2 0 0 0 2 0 )，教育部博士学科点基金 (批准号 :2 0 0 0 0 0 0 15 5 )资助 |
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| 摘 要： | 利用非离子表面活性剂C12E4的层状液晶作为模板,以氯金酸(HAuCl4)水溶液作为体系的水相和反应物,并利用C12E4中EO基团的还原性制备了Au的纳米线.研究表明,反应物的浓度、液晶体系的组成和反应时间都将影响产物的形貌.在适当条件下,可以得到直径约为20nm,长度达到几微米的均匀金纳米线,并探讨了纳米线形成过程中层状液晶的模板作用.
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| 关 键 词： | 非离子表面活性剂 C12E4 层状液晶 模板合成 Au纳米线 |
| 文章编号： | 0251-0790(2003)12-2143-04 |
| 收稿时间： | 2003-03-10 |
Preparation of Au Nanowires by a Liquid Crystal Template |
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| ZHANG Dong-Bai,QI Li-Min,CHENG Hu-Min,MA Ji-Ming.Preparation of Au Nanowires by a Liquid Crystal Template[J].Chemical Research In Chinese Universities,2003,24(12):2143-2146. |
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| Authors: | ZHANG Dong-Bai QI Li-Min CHENG Hu-Min MA Ji-Ming |
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| Institution: | State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China |
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| Abstract: | Au nanowires were synthesized in lamellar liquid crystals of C 12E 4 by using aqueous HAuCl 4 solution as the aqueous phase of the liquid crystals and the C 12E 4 itself as reducing agent. The effects of the reactant concentration, the surfactant/water molar ratio in the liquid crystal system and the reaction time on the morphology and size of the Au particles were investigated. The prepared Au nanoparticles are regular nanowires with a width of about 20 nm and a length of about several microns, showing a large aspect ratio under proper conditions. A lamellar liquid crystal templating mechanism has been proposed to interpret the experimental results. |
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| Keywords: | Nonionic surfactant C 12E 4 Lamellar liquid crystal Templating synthesis Au nanowires |
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