基于有序介孔二氧化硅薄膜的银纳米阵列电极  

Silver Nano Array Electrode Based on Ordered Mesoporous SiO_2 Film

作　　者：李辉[1] 杨剑琨[1] 苏彬[2] 

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]中国科学院化学所,北京100080

出　　处：《实验室研究与探索》2012年第9期18-21,共4页Research and Exploration In Laboratory

摘　　要：以P123为结构导向剂,正硅酸四乙酯为硅源,制备出二氧化硅溶胶。将制备好的溶胶溶液均匀涂于导电玻璃上,用电吹风沿玻片纵向吹扫至溶液凝固。将载有凝胶的导电玻璃置于马弗炉中,设定从室温经过1 000 min升温至370℃后恒温180 min,烧去薄膜上的有机部分,再降温至室温,最终得到有序介孔二氧化硅薄膜。将带有二氧化硅薄膜的导电玻璃放入AgNO3无水乙醇溶液中,70℃油浴加热24 h后取出,超声清洗,烘干并进行封装即得到银纳米阵列电极。采用X射线衍射(XRD)、透射电镜(TEM)、电子能谱分析(EDS)、紫外可见光谱(UV-Vis)及电化学方法进行表征。结果表明,成功形成了银纳米粒子及银纳米阵列电极。The purpose of the experiments is to synthesize silver nano array electrode based on ordered mesoporous silica film. The silica sol is prepared with P123 as structure directing agent and tetraethoxysiliane（TEOS） as silica source. Then, sol is coated equably on a conduction glass, and is blown lengthways to solidificate the sol along the conduction glass with an electric drier. The conduction glass with gel is placed into a muffle, and the temperature is increased from room temperature to 370℃ in 1 000 min and kept constant at 370℃ for 180 min. When the organic part on the film is removed by burning, the temperature is decreased to room temperature, and the ordered mesoporous silica fihn is obtained. After that, the conduction glass with the ordered mesoporous silica film is put into AgNO3 ethanol solution, and taken out after heating for 24 hour with oil bath, have it cleaned with supersound, and dried by baking and encapsulate. Then the slyer nano array electrode is ubtained. X ray diffraction, transmission electronic micrograph, electronic dispersion spectrum, uhraviot visible spectrum and electrochemical method are used to conduct characterization. It is verified that the silver nano particles and the silver nano array electrode are formed successfully.

关 键 词：有序介孔薄膜 二氧化硅 银纳米阵列电极 

分 类 号：O061[理学]