Journal
SYNTHETIC METALS
Volume 181, Issue -, Pages 72-78Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2013.08.010
Keywords
Hollow microspheres; Carbon nanotubes; Polypyrrole; Composite; Chemical oxidative interfacial polymerization; Electrochemical performance
Funding
- Natural Science Foundation of Gansu Province [1107RJZA213]
- Fundamental Research Funds for the Central Universities [lzujbky-2011-21, lzujbky-2013-237]
- National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China [J1103307]
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Well-defined carboxylated carbon nanotubes/polypyrrole composite (CNTs/PPy) hollow microspheres were fabricated via chemical oxidative interfacial polymerization of pyrrole in the presence of the carboxylated carbon nanotubes (CNT-COOH) for the first time. The near uniform particle size of 1.4 mu m was proved by the TEM analysis. All the CNT-COOH added in the polymerizing system had been incorporated into the polypyrrole (PPy) shells. Compared with the PPy hollow microspheres synthesized under the similar condition only without the CNT-COOH, the CNTs/PPy hollow microspheres exhibited slightly higher electrical conductivity and specific capacitance as electrode materials for supercapacitors, while their cycling stability had been evidently improved by introducing the CNT-COOH. (C) 2013 Elsevier B.V. All rights reserved.
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