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利用电化学技术及扫描隧道显微镜 ( STM) ,于 0 .1 mol/L HCl O4溶液中研究了 Schiff碱 N-aete-N在单晶 Au( 1 1 1 )面上所形成的自组装单分子膜 ( SAMs)的电化学性质及结构 .N-aete-N在 Au( 1 1 1 )电极表面的吸附抑制了金的阳极氧化 ,同时使固 /液界面双层电容明显降低 .观察到 N-aete-N SAMs的高分辨 STM图像 .N-aete-N分子在 Au( 1 1 1 )表面上以 ( 6× 7)结构单胞呈二维有序排列 ,其表面浓度为5 .5× 1 0 -11mol/cm2 .
The self-assembled monolayers of Schiff base N-aete-N formed on single crystal Au (11-1) surface were investigated by electrochemical technique and scanning tunneling microscope (STM) in 0.1 mol / L HClO4 solution The electrochemical properties of SAMs and the structure of the SAMs were also studied.The adsorption of N-aete-N on the Au (111) electrode inhibited the anodic oxidation of gold and decreased the double layer capacitance at the solid / liquid interface, aete-N SAMs. The N-aete-N molecule was arranged in a two-dimensional order of (6 × 7) units of structure on the Au (1 1 1) surface with a surface concentration of 5.5 × 1 0 -11 mol / cm2.