English, Article edition: THE ELECTROCHEMICAL STUDY OF SELF-ASSEMBLED 1,3-PROPANEDITHIOL ON GOLD YUQING MIAO; JIANRONG CHEN; XIAOHUA WU; ...

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Physical Description
  • article
Language
  • English

Edition details

Title
  • THE ELECTROCHEMICAL STUDY OF SELF-ASSEMBLED 1,3-PROPANEDITHIOL ON GOLD
Author
  • YUQING MIAO
  • JIANRONG CHEN
  • XIAOHUA WU
  • KEMING FANG
Physical Description
  • article
Notes
  • The electrochemical behaviors of bare/​dithiol-modified gold electrode were studied in the PBS solution with/​without dithiols. A pair of current peaks between -1.4 and -0.5 V is related to dithiol adsorption or re-adsorption. An oxidative peak at 0.37 V accompanied by a slight peak at 0.03 V is observed between -0.5 and 0.7 V for the bare gold electrode in the thiol solution, which is due to the formation of bilayer. When the potential is scanned to a very positive value at 1.2 V, a new oxidative peak at 1.07 V appears for the bare gold electrode in the dithiol solution or the PBS solution. The assembled dithiols are desorbed, and gold surface is exposed. The study indicates that the 1,3-propanedithiol modified electrodes should be used during the potential range of -0.8 to 0.8 V to keep the assembled layer stable.
  • 1,3-Propanedithiol, self-assembled monolayer, dithiol, thiol, self-assembly
  • RePEc:wsi:srlxxx:v:14:y:2007:i:01:p:111-115
Language
  • English
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