Please use this identifier to cite or link to this item:
|Title:||Study of overoxidized polypyrrole using X-ray photoelectron spectroscopy||Authors:||Ge, H.
|Issue Date:||Feb-1994||Citation:||Ge, H.,Qi, G.,Kang, E.-T.,Neoh, K.G. (1994-02). Study of overoxidized polypyrrole using X-ray photoelectron spectroscopy. Polymer 35 (3) : 504-508. ScholarBank@NUS Repository.||Abstract:||Overoxidation of polypyrrole was carried out electrochemically and studied by X-ray photoelectron spectroscopy. It is shown that overoxidation starts on the polymer adjacent to the electrode and then advances to the polymer facing solution. During overoxidation, original positive charges on polypyrrole (-NH+-) are mostly replaced by -NH-, accompanied by the loss of counterions. Overoxidation progresses in two steps. Carbons are oxidized into COH in the first step and into CO in the second step. Changing the pH of the media and increasing the potential have no significant effects on the degree of overoxidation in the range studied. © 1994.||Source Title:||Polymer||URI:||http://scholarbank.nus.edu.sg/handle/10635/91722||ISSN:||00323861|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jun 28, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.