1993 Fiscal Year Final Research Report Summary
Spectroscopic Investigation of Electrode Surfaces Prepared by Self-Assembling Method
| Project/Area Number |
03045011
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Institution | Hokkaido University |
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Principal Investigator |
UOSAKI Kohei Department of Chemistry, Faculty of Science . Professor, 理学部・化学科, 教授 (20133697)
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| Co-Investigator(Kenkyū-buntansha) |
CORN R.M. Department of Chemistry, 理学部, 教授
ELLIS A.B. Department of Chemistry, 理学部, 教授
SATO Yukari Department of Chemistry, Faculty of Science, 化学科, 日本学術振興会特別研
KONDO Toshihiro Department of Chemistry, Faculty of Science, 化学科, 助手 (70240629)
SHIMAZU Katuaki Division of Material Science, Graduated School of Environmental Earth Science, 助教授 (30109417)
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| Project Period (FY) |
1991 – 1993
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| Keywords | Self-assembled monolayer / Modified electrode / Redox property / Second harmonic generation / Hydroquinone / Ferrocene / FTIR |
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| Research Abstract |
1. SHG study of Au electrode
Surface reactions at Au electrode were investigated by using pico second SHG system in UW-Madison and nano second SHG system in Hokkaido University.
2. In-situ FTIR stydy of potential dependent structure/orientation of self-assembled monolayer on gold
Commercially available FTIR spectrometer was amended to perform potential modulated in-situ FTIR measurement of chemical species on electrode surface. It was found that orientation of alkylchain and ferrocene ring changed when the ferrocene moiety was oxidized/reduced. Furthermore, we found even the orientation of the monolayer of mercaptoalkanenitrile which has no redox group was affected by electrode potential due to charge-dipole interaction.
3. Construction of a monolayer for photo-induced electro transfer
A molecule which contains porphyrine as photo-sensitive group, quinine as electron relay and thiol as adsorbing group was synthesized and was attached on gold. Photo-response of the monolayer was investigated.
4. EQCM study of transport at mercapto-quinone/hydroquinone monolayer/electrolyte interface
Electrochemical quartz microbalance(EQCM) was employed to monitor the mass transport at the above mentioned interface. In low pH region no mass transport was detected but at high pH region, cation transport was found to accompany the redox reaction.
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