Jump to main content
Jump to site search

Issue 8, 2014
Previous Article Next Article

Raman characterization of pseudocapacitive behavior of polypyrrole on nanoporous gold

Author affiliations

Abstract

The practical applications of high-capacitance polypyrrole (PPy) as an active material for electrochemical supercapacitors are mainly limited by their poor cycling stability. By utilizing nanoporous gold enhanced Raman scattering of PPy, we investigated ex situ and in situ the structural origins of the low electrochemical stability of PPy. This study provided direct evidence that the stability degradation of PPy is caused by the irreversible transition between oxidation and reduction states of PPy, which is associated with the permanent deformation of PPy molecular chains subjected to applied potentials.

Graphical abstract: Raman characterization of pseudocapacitive behavior of polypyrrole on nanoporous gold

Back to tab navigation

Supplementary files

Article information


Submitted
24 Oct 2013
Accepted
28 Nov 2013
First published
28 Nov 2013

Phys. Chem. Chem. Phys., 2014,16, 3523-3528
Article type
Communication

Raman characterization of pseudocapacitive behavior of polypyrrole on nanoporous gold

Y. Hou, L. Zhang, L. Y. Chen, P. Liu, A. Hirata and M. W. Chen, Phys. Chem. Chem. Phys., 2014, 16, 3523
DOI: 10.1039/C3CP54497D

Social activity

Search articles by author

Spotlight

Advertisements