Virtues of composite structures in electrode modification. Preparation and properties of poly(aniline)/nafion composite films. Technical report No. 3, September 1987-June 1988

Technical Report · Sat Jul 09 00:00:00 EDT 1988

OSTI ID:6749098

Orata, D O; Buttry, D A

Poly(aniline) (PA) is electropolymerized within thin films of precast Nafion on gold or glassy carbon electrodes. The quartz crystal microbalance (QCM) is used to aid in identification of the ionic species that undergo transport during switching of the PA between its insulating and conducting forms. The QCM frequency changes observed in solutions containing various cationic species suggest that cation transport is dominant for these composite structures. In acidic solution, a consequence of the high transport number for the proton in the composite films is shown to be an enhanced switching rate relative to the simple (non-composite) PA film. The composite PA films appear to be less resistive and therefore more electrochemically well behaved over a wider pH range than the simple PA films.

• Research Organization: Wyoming Univ., Laramie (USA). Dept. of Chemistry
• OSTI ID: 6749098
• Report Number(s): AD-A-196011/1/XAB
• Country of Publication: United States
• Language: English

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