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Modification of Thiols onto Single Crystal Surfaces of Gold Electrodes for Metalloportein Electrochemistry

  • Isao Taniguchi
  • Soichiro Yoshimoto
  • Masahito Yoshida
  • Yasuhiro Mie
  • Kazuhiko Kudo
  • Katsuhiko Nishiyama

Abstract

Adsorption behavior of pyridine thiols (PySH) and corresponding disulfides (PySSPy) onto gold single crystal surfaces has been examined to understand in detail the suitable surface structures of the modified electrodes for cytochrome c electrochemistry. On the Au(111) surface PySH was rather easily decomposed with the C-S bond cleavage during modification of thiols from an ethanolic PySH solution, while PySSPy was more stable under the same conditions. Very interestingly, cytochrome c electrochemistry depended very much on the modifier structure at single crystal surfaces.

Keywords

Bond Cleavage Modify Electrode Electron Transfer Reaction Direct Electron Transfer Single Crystal Surface 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Japan 1998

Authors and Affiliations

  • Isao Taniguchi
    • 1
  • Soichiro Yoshimoto
    • 1
  • Masahito Yoshida
    • 1
  • Yasuhiro Mie
    • 1
  • Kazuhiko Kudo
    • 1
  • Katsuhiko Nishiyama
    • 1
  1. 1.Department of Applied Chemistry and Biochemistry, Faculty of EngineeringKumamoto UniversityKurokami, Kumamoto 860Japan

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