Summary of Research Project Results Under the JSPS FY2000
"Research for the future Program"



1.Research Institution The University of Tokyo
 
2.Research Area Physical and Engineering Science
 
3.Research Field Exploratory Research on Novel Artificial Materials and Substances for Next-Generation Industries
 
4.Term of Project FY1996〜FY2000
 
5.Project Number 96P00107
 
6.Title of Project Fundamentals and Applications of Photofunctional Interfaces using Diamond Film

7.Projetct Leader
Name Institution,Department Title of Position
Akira Fujishima Graduate School of Engineering Professor

8.Core Members

Names Institution,Department Title of Position
Masamichi Fujihira Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology Professor
Hideaki Masuda Tokyo Metropolitan University, Graduate School of Engineering Professor
Kazuhito Hashimoto Research Center for Advanced Science and Technology, The University of Tokyo Professor

9.Cooperating Researchers

Names Institution,Department Title of Position
Seiichiro Nakabayashi Saitama University, Faculty of Sciences Assistant Professor
Sachio Yoshihara Utsunomiya University, Graduate School of Engineering Assistant Professor
Yasuhisa Maeda Toyohashi University of Technology, Faculty of Engineering Lecturer

10.Summary of Research Results

Highly boron-doped diamond electrodes have received attention of several electrochemists and electroanalysts in the past few decades owing to their superior electrochemical properties that are significantly different from those of the other materials such as glassy carbon (GC), highly oriented pyrolytic graphite (HOPG) and metals, which have been used as electrode materials for many years. GC electrodes are conventionally used for the electrochemical applications due to their relatively wider potential window compared to other electrode materials such as platinum and gold.
GC is mainly composed of sp2-type carbon and the electronic and electrochemical properties depend on several factors including microstructure and carbon-oxygen functional groups. The electrochemical properties of conducting diamond electrodes, composed of sp3-type carbon include, a wide potential window in aqueous and non-aqueous electrolytes, very low capacitance and extreme chemical stability. These properties prove the superiority of diamond over the other electrode materials for electrochemical applications.
In this program, including fundamental studies and application of diamond in various fields were taken considered. The fundamental studies include the studies involving growth of polycrystalline diamond films and homoepitaxially grown diamond films using several dopants to obtain n-type and p-type diamond. These films thus obtained were characterized by use of several techniques for their use in electronics and electrochemistry. The other aspect proposed is the application of diamond in electroanalysis and electrosynthesis, as electrochemical detector making use of high over potentials for hydrogen and oxygen evolution, in vivo biosensor, electrochemical treatment of industrial wastewater and photoelectrochemical applications.

11.Key Words

(1)Diamond、(2)Electrodes、(3)Conductive thin films
(4)Electrochemical properties、(5)Biosensor、(6)Nano-structured materials
(7)Single crystal diamond

12.References

[Reference Articles]
Author Title of Article
B. V. Sarada, T. N. Rao, D. A. Tryk, and A. Fujishima Electroanalytical Application of Conductive Diamond Electrodes
Journal Volume Year Pages Concerned
New Diamond and Frontier Carbon Technology 9(5) 1999 365-377

Author Title of Article
E. Popa, Y. Kubota, D. A. Tryk, and A. Fujishima Selective Voltammetric and Amperometric Detection of Uric Acid with Oxidized Diamond Film Electrodes
Journal Volume Year Pages Concerned
Anal. Chem. 72(7) 2000 1724-1727

Author Title of Article
H. Masuda, M. Watanabe, K. Yasui, D. A. Tryk, T. N. Rao, A. Fujishima Fabrication of a Nanostructured Diamond Honeycomb Film
Journal Volume Year Pages Concerned
Adv. Mater. 12(6) 2000 444-447

Author Title of Article
S. Okuyama, S. I. Matsushita, and A. Fujishima Preparation of Periodic Microstructured Diamond Surfaces
Journal Volume Year Pages Concerned
Chem. Lett.   2000 533-534

Author Title of Article
K. Honda, T. N. Rao, D. A. Tryk, A. Fujishima, M. Watanabe, K. Yasui, and H. Masuda Electrochemical Characterization of the Nanoporous Honeycomb Diamond ELectrode as an Electrical Double-Layer Capacitor
Journal Volume Year Pages Concerned
Electrochem. Soc. 147(2) 2000 659-664

Author Title of Article
O. Chailapakul, E. Popa, H. Tai, B. V. Sarada, D. A. Tryk, and A. Fujishima The Electrooxidation of Organic Acids at Boron-Doped Diamond Electrodes
Journal Volume Year Pages Concerned
Electrochem. Commu.   2000 422-426

Author Title of Article
T. Tatsuma, H. Mori, and A. Fujishima Electron Transfer from Diamond Electrodes to Heme Peptide and Peroxidase
Journal Volume Year Pages Concerned
Anal. Chem. 72(13) 2000 2919-2924

Author Title of Article
T. N. Rao, and A. Fujishima Recent Advances in Electrochemistry of Diamond
Journal Volume Year Pages Concerned
Diamond and Related Materials 9 2000 384-389

Author Title of Article
S. Yoshihara, K. Shinozaki, T. Zenbayashi, S. Morino, T. Shirakashi, K. Hashimoto, D. A. Tryk, and A. Fujishima Nature of the Photographic Diamond Surface Phenomenon on Boron-Doped Diamond
Journal Volume Year Pages Concerned
Electrochimica Acta 45 2000 3375-3378

Author Title of Article
H. Masuda, K. Yasui, M. Watanabe, K. Nishino, T. N. Rao, and A. Fujishima Fabrication of Ordered Diamond/Metal Nanocomposite Structures
Journal Volume Year Pages Concerned
Chem. Lett.   2000 1112-1113

Author Title of Article
A. Fujishima, T. N. Rao, and D. A. Tryk TiO2 Photocatalysts and Diamond Electrodes
Journal Volume Year Pages Concerned
Electrochimica Acta 45 2000 4683-4690

Author Title of Article
T. N. Rao, B. V. Sarada, D. A. Tryk, and A. Fujishima Electroanalytical Study of Sulfa Drugs at Diamond Electrodes and Their Determination by HPLC with Amperometric Detection
Journal Volume Year Pages Concerned
J. Electroanal. Chem. 491 2000 175-181

Author Title of Article
H. Notsu, I. Yagi, T. Tatsuma, D. A. Tryk, and A. Fujishima Surface Carbonyl Groups on Oxidized Diamond Electrodes
Journal Volume Year Pages Concerned
J. Electroanal. Chem. 492 2000 31-37

Author Title of Article
S. G. Park, G. S. Kim, Y. Einaga, and A. Fujishima Crystalline Growth Properties of Diamond Thin Films Prepared by MPCVD
Journal Volume Year Pages Concerned
J. Korean Electrochem. Sco. 3(4) 2000 200-203


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