| Project/Area Number |
07459029
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
広領域
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| Research Institution | Tohoku University |
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Principal Investigator |
ITAYA Kingo Tohoku University, Faculty of Eng., Professor, 工学部, 教授 (40125498)
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| Co-Investigator(Kenkyū-buntansha) |
INUKAI Junji Tohoku University, Faculty of Eng., Research Associate, 工学部, 助手 (70245611)
SASHIKAT Kenji Tohoku University, Faculty of Eng., Research Associate, 工学部, 助手 (60261608)
高 云智 東北大学, 工学部, 講師 (50261607)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1996: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | Electrochemical Surface Science / Electrochemical STM / UHV-EC Combining Instrumentation / Single Crystal Electrode / Solid / Liquid Interfaces / Iodine / Electrochemical Etching / Group VIII Metals / 電界エッチング / 超高真空 / 電気化学 / LEED / AES / STM / Pt(111) / ヨウ素 |
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| Research Abstract |
In 1995, we constructed and improved our instruments for the analysis of solid/liquid interfaces. The analyical systems are for 1) easily comparing the results obtained by in-situ electrochemical STM and ex-situ UHV-EC combining system and for 2) in-situ electrochemical STM measurements on the single crystal samples prepared and defined under UHV.In 1996, by using these instruments, We carried out the following investigations. 1) Structural analysis of the adsorption structures of iodine on Pt(111), Au(111), and Ag(111) in electrolyte solutions. On Pt(111), iodine formes (3x3) or (ROO<7>xROO<7>)R19.1ﾟ structure according to the immersion potentials. On Au(111) and Ag(111), iodine exibites continuous structural change according to the applied electrode potentials in solutions. 2) Electrochemical etching of Pd(111), (100), and (110) electrode surfaces were examined. The etching process in an atomic scale was understood by the combining system. 3) Ni(100) and (111) surfaces were prepared under UHV,and they were subsequently brought into solutions for in-situ STM measurements without polution. Ni surfaces showed (100) and (111) structures in solutions. The etching processes were also examined.
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