摘要
利用非离子表面活性剂 C12 E4的层状液晶作为模板 ,以氯金酸 ( HAu Cl4)水溶液作为体系的水相和反应物 ,并利用 C12 E4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 2 0 nm,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 .
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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第12期2143-2146,共4页
Chemical Journal of Chinese Universities
基金
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
