CUED Publications database

Characterization of aniline tetramer by MALDI TOF mass spectrometry upon oxidative and reductive cycling

Li, RL and Lin, CW and Shao, Y and Chang, CW and Yao, FK and Kowal, MD and Wang, H and Yeung, MT and Huang, SC and Kaner, RB (2016) Characterization of aniline tetramer by MALDI TOF mass spectrometry upon oxidative and reductive cycling. Polymers, 8.

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Abstract

© 2016 by the authors. By combining electrochemical experiments with mass spectrometric analysis, it is found that using short chain oligomers to improve the cycling stability of conducting polymers in supercapacitors is still problematic. Cycling tests via cyclic voltammetry over a potential window of 0 to 1.0 V or 0 to 1.2 V in a two-electrode device configuration resulted in solid-state electropolymerization and chain scission. Electropolymerization of the aniline tetramer to generate long chain oligomers is shown to be possible despite the suggested decrease in reactivity and increase in intermediate stability with longer oligomers. Because aniline oligomers are more stable towards reductive cycling when compared to oxidative cycling, future conducting polymer/oligomer-based pseudocapacitors should consider using an asymmetric electrode configuration.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:23
Last Modified: 08 Aug 2017 01:51
DOI: