2005 Fiscal Year Final Research Report Summary
Preparation of Nano-hybrid Materials Composed of Light Elements and Application of Them for Hydrogen Generation and Storage
| Project/Area Number |
15550174
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Osaka Electro-Communication University |
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Principal Investigator |
KAWAGUCHI Masayuki Osaka Electro-Communication University, Department of Materials Science, Professor, 工学部, 教授 (10268295)
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| Co-Investigator(Kenkyū-buntansha) |
ENOMOTO Hiroyuki Osaka Electro-Communication University, Department of Materials Science, Professor, 工学部, 教授 (10213563)
HATORI Hiroaki AIST Tsukuba West, Group Leader, エネルギー利用研究部門, グループ長 (50357787)
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| Project Period (FY) |
2003 – 2005
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| Keywords | Nano-hybrid Material / Ti / O / C / N Material / Photocatalyst / Bandgap / Hydrogen Generation |
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| Research Abstract |
Doping of carbon and nitrogen into TiO_2 has been investigated for the development of photo-electrochemical properties such as photocatalysis excited by visible light. In the present study, we have tried to prepare quaternary Ti/O/C/N materials by a chemical reaction of TiCl_4 with natural resources such as chop of birch or cotton, and measured their photo-electrochemical properties. The Ti/O/C/N material was prepared by the reaction of TiCl_4 with chop of birch at 770K under N_2 atmosphere.
X-ray diffraction and ESCA studies indicated that white film on the product was anatase-type TiO_2 and bulk was noncrystalline carbon. Electrochemical properties were measured by cyclic voltammetry and potentiostatic method in 0.5M-H_2SO_4 aqueous solution. Photo-electrochemical current increased by the irradiation of visible light using Xe lamp whose UV light was cut by a filter. Increasing in both oxidation and reduction current suggested that both electrons and holes could make photo-electrochemical reaction. Irradiation by halogen lamp having UV light accelerated the photo-electrochemical reaction.
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