• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1994 Fiscal Year Final Research Report Summary

A STUDY ON PHOTOACTIVATION OF FUEL CELLS

Research Project

Project/Area Number 05453192
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Science education
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

MATSUO Taku  KYUSHU UNIVERSITY,DEPT.OF CHEMICAL SCIENCE AND TECHNOLOGY,PROFESSOR, 工学部, 教授 (30037725)

Co-Investigator(Kenkyū-buntansha) NIIDOME Yasurou  KYUSHU UNIVERSITY,DEPT.OF CHEMICAL SCIENCE AND TECHNOLOGY,ASSISTANT, 工学部, 助手 (50264081)
YONEMURA Hiroaki  KYUSHU UNIVERSITY,DEPT.OF CHEMICAL SCIENCE AND TECHNOLOGY,ASSISTANT, 工学部, 助手 (40220769)
YAMADA Sunao  KYUSHU UNIVERSITY,DEPT.OF CHEMICAL SCIENCE AND TECHNOLOGY,PROFESSOR, 工学部, 教授 (30136551)
Project Period (FY) 1993 – 1994
Keywordssemiconductor photocatalyst / titanium dioxide / methanol fuel cell / Nafion / ultrathin polymer film / photoresponse / new type fuel cell
Research Abstract

Photosynthesis is defined as an energy conversion from photon into chemical potentials, which are accumulated across thylakoid membrane. In this research project, attempts have been made to prepare photoactive, ultrathin films for construction of "artificial thylakoid membrane" . The study was consisted of two parts :
As a model system, titanium dioxide powder was impregnated on the surface of Nafion film (solid polymer electrolyte). Platinum meshes were attached to both surfaces of the Nafion film to construct a fuel cell in the presence of dihydrogen gas. Aqueous methanol solutions could be used as a fuel, when the cell was illuminated with ultraviolet light. The photocurrent reached upto 2 mA/cm^2. The photocurrent was ascribed to photoactivation of titanium dioxide. Photocatalytic oxidation of methanol liberated dihydrogen at the film surface so that photoactivation of fuel cell was achieved. A part of the photocurrents could be ascribed to direct electron-flow from conduction band of the titanium dioxide to the electrode.
A novel, ultrathin polymer film was prepared by developing polymer solutions on water surface. Polyvinylchloride in THF-toluene mixed solvent afforded the best thin film (25 nm in thickness), which was selectively impregnated with amphiphylic ruthenium trisbipyridine complexes at one surface. Asymmetric property of the film was confirmed by observation of optical second harmonic generation (SHG) at the surface. In addition, the ruthenium complexes at the membrane surface were verified to act as photoredox catalyst in aqueous solutions.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] S.Yamada,H.Iida,T.Matsuo: "Asymmetric Property of an Ultrathin Polymer Film Impregnated with amphiphilic Polypyridine Complex for Photacatalytic Reduction of Viologen" J.Chem.Soc.,Commum.1288-1290 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Yamada,M.Kawazu,T.Matsuo: "Second-Order Nonlinear Optical Effects in Stacked Assemblies of Ultrathin Polymer Films with Amphiphilic Ruthenium Complex" J.Phys.Chem.98. 3573-3574 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Yamada,Y.Yamada,T.Nakano,T.Matsuo: "In-sits Observation of Second Harmonic Lights from Amphiphilic Ruthenium(II)Tris(2,2'-bipyridine)Complex at Glass/Liquid Interface" Chem.Lett.937-940 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Yamada,T.Nakano,T.Matsuo: "Second Harmonic Generation from Langmuir-Blodgett Monolayers of Amphiphlilic Rethenium(II)Complexes:Structural Caharacterzation with PolarizationMeasurements" Thin Solid Films. 245. 196-201 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Yamada, H.Iida, T.Matsuo: ""Asymmetric Property of an Ultrathin Polymer Film Impregnated with Amphiphilic Polypyridine Complex for Photocatalytic Reduction of Viologen"" J.Chem.Soc., Chem., Commun.1288-1290 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Yamada, M.Kawazu, T.Matsuo: ""Second-Order Nonlinear Optical Effects in Stacked Assemblies of Ultrathin Polymer Films with Amphiphilic Ruthenium Complx"" J.Phys.Chem.Vol.98. 3573-3574 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Yamada, Y.Yamada, T.Nakano, T.Matsuo: ""In-situ Observation of Second Harmonic Lights from Amphiphilic Ruthenium (II) Tris (2,2'-bipyridine) Complex at Glass/Liquid Interface"" Chem.Lett.937-940 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Yamada, T.Nakano, T.Matsuo: ""Second Harmonic Generation from Langmuir-Blodgett Monolayrs of Amphiphilic Ruthenium (II) Complexes : Structural Characterzation with Polarization Measurements"" Thin Solid Films. Vol.245. 196-201 (1994)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1996-04-15  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi