1989 Fiscal Year Annual Research Report

界面電子移動と機能発現

Research Project

Project/Area Number	62303011
Research Institution	Osaka University
Principal Investigator	米山宏大阪大学, 工学部, 教授 (80029082)
Co-Investigator(Kenkyū-buntansha)	中戸義禮大阪大学, 基礎工学部, 助教授 (70029502) 藤平正道東京工業大学, 工学部, 教授 (40013536) 藤嶋昭東京大学, 工学部, 教授 (30078307) 小山昇東京農工大学, 工学部, 教授 (40134845) 相澤益男東京工業大学, 工学部, 教授 (00016742)
Keywords	電極反応 / 修飾電解 / 電池活物質 / 生物電気化学 / 高分子被覆電極
Research Abstract	研究分担者が各自の研究課題について研究を進めるとともに、研究成果についての討論の会を開催し、総合研究としての成果の結実につとめた。高分子/溶液界面の電子移動と機能。トリフルオロ酢酸を含む非水電解液を用いる電解重合により、導電性の電気化学活性なポリアニンが得られること、電解重合で調整したポリピロ-ルと酸化タングステン粉末との複合体膜のエレクトロクロミズムが酸化タングステンの含有量によって系統的に変化することなどが見出された。分子集合体/溶液界面の電子移動と機能。LB膜で構成したフォトダイオ-ドの研究を光合成の初期過程のシミュレ-ションに発展させたこと、粘土層間に固定した酸化チタンや酸化鉄の超微粒子の光触媒活性は触媒の帯電状態によって著しく変わること、STMにより電極表面状態を原子スケ-ルで評価できること、などが見出された。生体関連物質/溶液界面の電子移動と機能。ジアフォラ-ゼ固定化電極により電解的に再現性よくNADHの定量ができること、チクトロムCの電極反応におけるプロモ-タの役割は、タンパク質の電極表面上への吸着抑制によること、およびポリピロ-ル中にメディエ-タと酵素の両者を固定すると酵素のレドックス反応が容易に起こることを見出した。エネルギ-蓄積物質/溶液界面の電子移動と機能。二酸化鉛の充放電反応メカニズムを原子スケ-ルでほぼ解明し、リチウム含有二酸化マンガンの減機能におよぼす固体マトリクスの影響について明らかにし、リチウムの充放電極動におよぼす電解液の効果を広範囲に明らかにした。半導体/溶液界面のダイナミックスと機能。STMにより層状半導体光電極の溶解反応機構の解明に成功し、表面発光分光法により酸化チタン光電極上での酸素発注には電極表面の格子欠陥が関与することを見出し、半導体上での電荷移動速度を過渡吸収測定から評価することに成功した。

Research Products
(15 results)

All Other

All Publications (15 results)

[Publications] H.Yoneyama: "Photocatalytic Activities of Microcrystalline YiO_2 Incorporated in Sheet Silicates of Clay" The Journal of Physical Chemistry. 93. 4833-4837 (1989)
[Publications] H.Shinohara: "Electrically Stimulated Rupture of Cell Membranes with a Conducting Polymer-coated Electrodes" Bioelectrochemistry & Bioenergetics. 22. 23-35 (1989)
[Publications] K.Itaya: "In-situ Scanning Tunneling Microscopy of Platinum(III)Surface in Aqueous Sulfuric Acid Solutions" Journal of the Chemical Society,Faraday Transactions I. 85. 1351-1356 (1989)
[Publications] K.Uosaki: "Preparation and Characterization of Wet Polyvinylchloride-Polypyrrole Composite Films" Journal of Polymer Science,Polymer Chemistry Edition. 28. (1990)
[Publications] T.Osaka: "Preparation of MIM(Metal-Insulator-Metal)Non-linear Devices Using Electropolymerized Poly-N-methylpyrrole" Chemistry Letters. 1543-1546 (1989)
[Publications] T.Osaka: "Electrochemical Polymerization of Electroactive Polyaniline in Nonaqueous Solution and Its Application in Rechargeable Lithium Batteries" The Journal of the Electrochemical Society. 136. 306-310 (1989)
[Publications] H.Chang: "Effect of Viologen Structure on Electroreduction of NAD^+ Catalyzed by Diaphorase Immobilized on Electrodes" Chemistry Letters. 1119-1122 (1989)
[Publications] H.Harada: "Semiconductor Effect on the Selective Photocatalytic Reaction of α-Hydrocarboxylic Acids" The Jouernal of Physical Chemistry. 93. 1542-1548 (1989)
[Publications] Z.Takehara: "The Oxidation Reaction of Lead Sulfate Formed in the Interface between the Grid and Active Material" The Journal of the Electrochemical Society. 136. 620-625 (1989)
[Publications] I.Taniguchi: "Electrochemically Distingushable States of Ferricyto-chrome c and Their Transition with Changes in Temperature and pH" Journal of Electroanalytical Chemistry and Interfacial Electrochemistry. 270. 297-308 (1989)
[Publications] K.Ueda: "Silicon Electrodes Coated with Extremely Small Platinum Islands for Efficient Solar Energy Conversion" The Journal of the Electrochemical Society. 136. 2280-2285 (1989)
[Publications] T.Ohzuku: "Electrochemistry of Manganese Dioxide in Lithium Nonaqueous Cell:X-Ray Diffraction Study on the Reduction of Electrolytic Manganese Dioxide" The Journal of the Electrochemical Society. 136. 3169-3174 (1989)
[Publications] K.Sakamaki: "Imaging the Phenol Molecules Adsorbed on TiO_2 by Scanning Tunneling Microscopy" Surface Science. 219. 682-689 (1989)
[Publications] K.Suga: "Electron Spin Resonance Study of the Langmuir-Blodget Films of Amphiphilic Tetracyanoquinodimethane Salts" Journal of Physical Chemistry. 93. 392-397 (1989)
[Publications] 松田好晴: "有機電解液のリチウム電池への応用" 日本化学雑誌. 1-14 (1989)

1989 Fiscal Year Annual Research Report

界面電子移動と機能発現

Principal Investigator

米山 宏 大阪大学, 工学部, 教授 (80029082)

Research Products

[Publications] H.Yoneyama: "Photocatalytic Activities of Microcrystalline YiO_2 Incorporated in Sheet Silicates of Clay" The Journal of Physical Chemistry. 93. 4833-4837 (1989)

[Publications] H.Shinohara: "Electrically Stimulated Rupture of Cell Membranes with a Conducting Polymer-coated Electrodes" Bioelectrochemistry & Bioenergetics. 22. 23-35 (1989)

[Publications] K.Itaya: "In-situ Scanning Tunneling Microscopy of Platinum(III)Surface in Aqueous Sulfuric Acid Solutions" Journal of the Chemical Society,Faraday Transactions I. 85. 1351-1356 (1989)

[Publications] K.Uosaki: "Preparation and Characterization of Wet Polyvinylchloride-Polypyrrole Composite Films" Journal of Polymer Science,Polymer Chemistry Edition. 28. (1990)

[Publications] T.Osaka: "Preparation of MIM(Metal-Insulator-Metal)Non-linear Devices Using Electropolymerized Poly-N-methylpyrrole" Chemistry Letters. 1543-1546 (1989)

[Publications] T.Osaka: "Electrochemical Polymerization of Electroactive Polyaniline in Nonaqueous Solution and Its Application in Rechargeable Lithium Batteries" The Journal of the Electrochemical Society. 136. 306-310 (1989)

[Publications] H.Chang: "Effect of Viologen Structure on Electroreduction of NAD^+ Catalyzed by Diaphorase Immobilized on Electrodes" Chemistry Letters. 1119-1122 (1989)

[Publications] H.Harada: "Semiconductor Effect on the Selective Photocatalytic Reaction of α-Hydrocarboxylic Acids" The Jouernal of Physical Chemistry. 93. 1542-1548 (1989)

[Publications] Z.Takehara: "The Oxidation Reaction of Lead Sulfate Formed in the Interface between the Grid and Active Material" The Journal of the Electrochemical Society. 136. 620-625 (1989)

[Publications] I.Taniguchi: "Electrochemically Distingushable States of Ferricyto-chrome c and Their Transition with Changes in Temperature and pH" Journal of Electroanalytical Chemistry and Interfacial Electrochemistry. 270. 297-308 (1989)

[Publications] K.Ueda: "Silicon Electrodes Coated with Extremely Small Platinum Islands for Efficient Solar Energy Conversion" The Journal of the Electrochemical Society. 136. 2280-2285 (1989)

[Publications] T.Ohzuku: "Electrochemistry of Manganese Dioxide in Lithium Nonaqueous Cell:X-Ray Diffraction Study on the Reduction of Electrolytic Manganese Dioxide" The Journal of the Electrochemical Society. 136. 3169-3174 (1989)

[Publications] K.Sakamaki: "Imaging the Phenol Molecules Adsorbed on TiO_2 by Scanning Tunneling Microscopy" Surface Science. 219. 682-689 (1989)

[Publications] K.Suga: "Electron Spin Resonance Study of the Langmuir-Blodget Films of Amphiphilic Tetracyanoquinodimethane Salts" Journal of Physical Chemistry. 93. 392-397 (1989)

[Publications] 松田好晴: "有機電解液のリチウム電池への応用" 日本化学雑誌. 1-14 (1989)

米山宏大阪大学, 工学部, 教授 (80029082)