Jump to main content
Jump to site search

Issue 8, 2014
Previous Article Next Article

One-step construction of graphene–polypyrrole hydrogels and their superior electrochemical performance

Author affiliations

Abstract

Graphene–polypyrrole (GPPy) composites with 3-dimensional macrostructure were prepared by a one-step self-assembly process, in which the continuous oxidation-reduction reaction of pyrrole monomers and graphite oxide in the existence of Cu2+ finally resulted in the formation of macroporous hydrogels. The as-prepared hydrogel exhibited a high specific capacitance of 498 and 295 F g−1 respectively at the scan rate of 5 mV s−1 and the discharge current density of 1 A g−1. Furthermore, a specific capacitance of 240 F g−1 could be achieved even if at a high current density of 10 A g−1, and maintained 80% of the capacitance value after charge–discharge for 5000 cycles. Such excellent capacitive properties in rate stability and cycling stability endow the GPPy hydrogels with great potential applications in high-performance energy storage devices. Besides, this study also provides new insights into the design and synthesis of graphene-based materials.

Graphical abstract: One-step construction of graphene–polypyrrole hydrogels and their superior electrochemical performance

Back to tab navigation

Publication details

The article was received on 24 Aug 2013, accepted on 03 Dec 2013 and first published on 05 Dec 2013


Article type: Paper
DOI: 10.1039/C3RA44647F
Citation: RSC Adv., 2014,4, 4134-4139
  •   Request permissions

    One-step construction of graphene–polypyrrole hydrogels and their superior electrochemical performance

    H. Zhou, T. Ni, X. Qing, X. Yue, G. Li and Y. Lu, RSC Adv., 2014, 4, 4134
    DOI: 10.1039/C3RA44647F

Search articles by author

Spotlight

Advertisements