权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Development of in-situ analysis system for molecular layrs on solid surface solution.

固体表面溶液分子层原位分析系统的开发。

基本信息

批准号：
04555191
负责人：
UOSAKI Kohei
金额：
$ 9.54万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1994
项目状态：
已结题

项目摘要

Since observation and analysis of molecular layrs on solid surface in solution have been carried out separately by various techniques, it is rather difficult to capture real pictures of structure/orientation of molecular layrs accurately. In this study, new analysis systems which combine many techniques are developed. The detail is as fellows.1. In-situ FT-IR-Quartz Crystal Microbalance Combined System.A new FT-IR machine was purchased and a novel electrochemical IR cell which employs QCM as an electrode was designed and constructed. This cell permits QCM measurement possible even when the electrode was pressed against cell CaF_2 window during FT-IR measurement.Using this system, simultaneous monitoring of changes of interfacial mass and structure of self-assembled monolayr prepared under various conditions during application of electrodes potential was carried out.2. In-situ UV/VIS-Quartz Crystal Microbalance Combined System.Very thin metal layr (10-50nm) vacuum deposited on QCM was employed as an electrode.This electrode was placed in light path of UV/VIS spectrometer so that UV/VIS spectra and mass change can be measured simultaneously during electrochemical reactions. The effectiveness of this system was demonstrated for redox of viologen and Prussian blue.3. STM/AFM-Quartz Crystal Microbalance Combined System.STM and AFM systems were modified so that frequency of the QCM can be recorded simultaneously during STM/AFM imaging. The comparison between STM/AFM image and frequency image shows that the tip-substrate interaction causes the stress, resulting frequency change.

由于溶液中固体表面分子层的观察和分析是分别用不同的技术进行的，因此很难准确地捕捉到分子层结构/取向的真实的图像。在这项研究中，新的分析系统，联合收割机许多技术的发展。细节是作为fellows.1.原位红外光谱-石英晶体微天平联用系统：购置了一台新的红外光谱仪，设计并制作了一种以石英晶体微天平为电极的新型电化学红外池。利用该系统，对不同条件下制备的自组装膜在施加电极电位过程中界面质量和结构的变化进行了同步监测.原位紫外/可见光谱-石英晶体微天平组合系统：在石英晶体微天平上真空沉积10- 50 nm的金属薄层作为电极，将该电极置于紫外/维斯光谱仪的光路中，可同时测量电化学反应过程中的紫外/维斯光谱和质量变化。该体系对紫精和普鲁士蓝的氧化还原反应具有较好的效果. STM/AFM-石英晶体微天平组合系统：对STM和AFM系统进行了改进，使得在STM/AFM成像过程中可以同时记录QCM的频率。STM/AFM图像与频率图像的比较表明，针尖-衬底相互作用引起应力，导致频率变化。