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New Trend in Photoelectrochemistry using Conductive Diamond Film

导电金刚石膜光电化学新趋势

基本信息

批准号：
11694133
负责人：
FUJISHIMA Akira
金额：
$ 4.61万
依托单位：
The University Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11694133/
关键词：
Diamond Electrode Diamond Electrode Potential Window Analysis Photoelectrochemistry Sensor 電極材料微量検出

项目摘要

We have been interested in investigating the (photo) electrochemical properties of borondoped diamond electrodes for various electrochemical applications, because diamond exhibits several unique electrochemical properties such as (1) wide electrochemical potential window, (2) low background current, and (3) surface inertness in terms of adsorption. We have demonstrated that diamond has potential use for electroanalysis of various biologically significant molecules, whose detection is difficult by usual electrodes like glassy carbon. In order to make use of these unique properties in biological fields, we have collaborated with various international scientists from various specialized fields. Prof.C.Cabrera of Puerto Rico University, Prof.H.Kim of Seoul university, Dr.N.Spataru of the Institute of Physical Chemistry of the Romanian Academy, Prof.A.Manivannan of west Virginia University and several other scientists have been involved in this collaborative work. As a result, we were able to successfully widen the field of applications of the photoelectrochemical properties of diamond electrodes. The research results during the past two years are as follows :19991. We have elucidated the photoelectrochemical functions of diamond and successfully made use of strong reduction property of photogenerated electron to drive electrochemical reactions.2. We have developed a highly sensitive sensor for biological samples due to the excellent properties of diamond and fabricated diamond micro- and nanostructures.20001. We have investigated new functional properties of diamond by preparing an opal-shaped structure with dry-etching technique.2. We have demonstrated the potential use of nanostructured diamond for the fuel cell application by performing basic studies using methanol.

我们一直有兴趣研究硼掺杂金刚石电极的（光）电化学性质，用于各种电化学应用，因为金刚石具有几个独特的电化学性质，如（1）宽的电化学电位窗口，（2）低背景电流，和（3）表面惰性的吸附。我们已经证明，金刚石具有潜在的用途，电分析各种生物重要的分子，其检测是困难的，通常的电极，如玻璃碳。为了在生物领域利用这些独特的特性，我们与来自各个专业领域的国际科学家合作。波多黎各大学的C.Cabrera教授、首尔大学的H.Kim教授、罗马尼亚科学院物理化学研究所的N.Spataru博士、西弗吉尼亚大学的A.Manivannan教授和其他几位科学家参与了这项合作工作。因此，我们能够成功地拓宽金刚石电极的光电化学性能的应用领域。近两年的研究成果如下：19991。阐明了金刚石的光电化学功能，并成功地利用光生电子的强还原性来驱动电化学反应.我们已经开发出一种高灵敏度的生物样品传感器，由于金刚石和制造金刚石微米和纳米结构的优良性能。通过干法刻蚀技术制备蛋白石结构，研究了金刚石的新功能特性.我们已经证明了潜在的使用纳米结构的金刚石的燃料电池应用进行基础研究，使用甲醇。