溶胶凝胶修饰电极在微孔通道中的电化学行为的探索  

A Novel Electrochemical Behavior Research in Micro Interface Based on Sol-gel Modified Electrode

作　　者：茹婧[1] 杜捷[1] 何红霞[1] 卢小泉[1] 

机构地区：[1]西北师范大学化学化工学院,甘肃省生物电化学与环境分析重点实验室,兰州730070

出　　处：《分析化学》2013年第8期1249-1253,共5页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金(Nos.21175108;21165015);甘肃省自然科学基金(No.090GKCA036)的资助

摘　　要：采用溶胶凝胶技术与恒电位电沉积方法,将多维网状结构的SiO2凝胶固定在电极表面,这种SiO2凝胶材料具有多孔性、热稳定性、化学惰性及制备简单等优点。在最优条件下,采用交流阻抗技术(EIS)及循环伏安技术(CV),成功构建了多维微通道电子传递模型。这种具有多维微通道式网状结构的溶胶凝胶材料被固载在电极表面,可模拟微观界面的细胞生物膜的电子传递。The multi-dimension network of SiO2 sol-gel was immobilized on the electrode surface based on employing the sol-gel technology and electrochemistry deposition method.These SiO2 materials could be prepared under ambient conditions,and exhibited the properties such as tunable porosity,high thermal stability,and chemical inertness and so on.Under optimal experiment conditions,the SiO2 sol-gel was deposited on the electrode surface by electrochemical impedance spectroscopy（EIS） technology,the electron transfer model was constructed successfully in multi-dimension micro interface.Therefore,the multi-dimension network structure of sol-gel was immobilized on the electrode surface,which is used to simulate electron transfer model in cell membrane of micro interface.

关 键 词：溶胶凝胶 电化学交流阻抗 电沉积 细胞生物膜 电子传递 

分 类 号：O648.17[理学—物理化学]