Development of a novel atomic force microscope for use in water and its applications to the dinamic analysis of electrode processes

新型水原子力显微镜的开发及其在电极过程动态分析中的应用

• 批准号: 05453070
• 负责人: OKAZAKI Satoshi
• 金额: $ 4.74万
• 依托单位: KYOTO UNIVERSITY (1994)Ehime University (1993)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05453070/
• 关键词: UHV-AFM; AFM in water; AFM in controlled atmosphere; Palladium electrode; ITO-Optically transparent electrode; Redox behavior; Polysubstituted pyrrole thin film; Chracterization of electrode surface; 雰囲気制御型原子間力顕微鏡; パラジウム電極; ITO光透過性電極; 酸化還元挙動

A novel vacuum atomic force microscope in ultra-high vacuum (UHV-AFM), in an innert gas atmosphere and in water has been developed for the in-situ dynamic analyzes of the local mechanism of electrochemical reactions in a wide resolution range between sub-nm and mum-dimensions. This in-situ AFM can obtain images fast enough to observe many chemical, electrochemical and biological processes in real time.The fundamental studies on in-situ AFM observation of the electrode surfaces were carried out under various electrolytic interfacial environment. The electrochemical and AFM characterizations of various metal electrode surfaces were performed by using cyclic voltammetry and in-situ AFM.The surface profile of a palladium electrode gave very porous structure and showed interesting potentiometric behavior in oxygen free solutions of KCl and HCl. The electrooxidation processes of polysubstituted pyrrole on ITO-optically transparent electrode were also investigated by this method.This in-situ AFM may prove an interesting new method to understanding diverse phenomenon at liquid-solid interfaces, such as electrodeposition, metal corrosion, passive layr formation, etc.

研制了一种新型的超高真空原子力显微镜（UHV-AFM），用于在亚纳米到微米尺度的宽分辨率范围内对电化学反应的局部机理进行原位动态分析。这种原位原子力显微镜能够快速获得图像，能够真实的观察许多化学、电化学和生物过程。利用循环伏安法和原位原子力显微镜对不同金属电极表面进行了电化学和原子力显微镜表征。钯电极的表面轮廓给出了非常多孔的结构，并在KCl和HCl的无氧溶液中显示出有趣的电位行为。用该方法研究了多取代吡咯在ITO-光学透明电极上的电氧化过程，为研究电沉积、金属腐蚀、钝化层形成等液-固界面现象提供了一种新的方法。

项目成果

M.Oyama: "Spectroelectrochemical Studies on Biological Compounds by a Direct Electrolysis Method Using a Column Electrode and Flow Technique" Proc.5th Inter.Symp.Redox Mechanisms and Interfacial Properties of Molecules of Biological Importance. 343-354 (1

M.Oyama：“使用柱电极和流动技术通过直接电解方法对生物化合物进行光谱电化学研究”Proc.5th Inter.Symp.氧化还原机制和生物重要性分子的界面性质。

J.A.Cooper: "Channel Electrode Voltammetry:The Kinetics of the Complexation of the Chloramil Radical Anion by M^<2+> Ions by Waveshape Analysis," J.Electroanal.Chem.442. 203-208 (1998)

J.A.Cooper：“通道电极伏安法：通过波形分析研究 M^<2> 离子对氯胺自由基阴离子的络合动力学”，J.Electroanal.Chem.442。

S.Okazaki: "Correlation between the Redox potentials of 9-Substiuted Anthrathenes and the Results of PM3 Calaculation," Electroanalysis. 9. 1242-1246 (1997)

S.Okazaki：“9-取代蒽的氧化还原电位与 PM3 计算结果之间的相关性”，电分析。

Ikko Sakamoto, Kunihisa Sogabe and Satoshi Okazaki: "Ion-Solvent Complexing and Ionic Solvent Transfer" Denki Kagaku. 61. 934-935 (1993)

Ikko Sakamoto、Kunihisa Sogabe 和 Satoshi Okazaki：“离子溶剂络合和离子溶剂转移”Denki Kagaku。

Satoshi Okazaki: "Electrochemical and AFM Studies of the Electrode Reaction Processes on Palladium Electrode" J.Electroanal.Chem.(tto be submitted).

Satoshi Okazaki：“钯电极上电极反应过程的电化学和AFM研究”J.Electroanal.Chem.（待提交）。