纳米银自组装多层膜修饰铟锡氧化物(ITO)电极的制备及电化学研究  

Study on preparation of silver nano-particle self-assembled multilayer film modified ITO electrode and its electrochemical behavior

作　　者：马建文[1] 樊丽妃[1] 张英俊[1] 任怀宇[1] 

机构地区：[1]华南理工大学化学与化工学院,广东广州510640

出　　处：《化工科技》2009年第5期40-44,共5页Science & Technology in Chemical Industry

摘　　要：用3-氨基-三甲氧基硅烷对铟锡氧化物(ITO)导电玻璃进行修饰,以4,4-联吡啶为桥连配体,用层层自组装法制备纳米银多层膜。应用原子力显微镜、紫外可见光谱对其表征。用循环伏安法初步研究了碘离子在电极上的电化学行为。结果表明:电极对碘离子有很好的电化学响应,碘离子在(2×10^(-5)～5×10^(-4))mol/L浓度范围内与氧化峰电流呈良好的线性关系,最低检出限5×10^(-6)mol/L,线性相关性系数:R=0.999 24。3-Aaminopropyltrimethoxysilane was used to modify Indium Tin Oxides （ITO） conducting glass, 4,4-bispyridyl was employed as a bridging ligand and layer-by-layer self-assembly was applied to prepare silver nano-particle multilayer. AFM, UV-vis and cyclic voltammetry were applied to characterize it and the electrochemical process of Iodide on the electrode was studied. The results showed that this modified electrode exhibited a good electrochemical response to iodide. Iodide showed a good linear relationship at a range of （2×10^-5～5×10^-4）mol/L,R=0. 999 24, with the lowest detection limit of 5 × 10^-6 mol/L.

关 键 词：纳米银 自组装 碘离子 铟锡氧化物(ITO) 

分 类 号：TB383[一般工业技术—材料科学与工程]