Journal
ELECTROCHIMICA ACTA
Volume 58, Issue -, Pages 193-202Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.09.060
Keywords
Polypyrrole; Praseodymium oxide; Nanocomposites; Energy storage; Supercapacitors
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Funding
- Natural Science Foundation of Gansu Province [1107RJZA213]
- Fundamental Research Funds for the Central Universities [lzujbky-2011-21]
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We report the synthesis of a series of praseodymium oxide/polypyrrole (Pr6O11/PPy) nanocomposites, and their application in the electrochemical energy storage. The Pr6O11/PPy nanocomposites were synthesized by the in situ surface-initiated polymerization technique based on the amine-functionalized Pr6O11 nanoparticles. The nanocomposites exhibit the well-defined core/shell structure observed by transmission electron microscopy (TEM) and scanning electron microscope (SEM). Thermogravimetric analysis reveals a significantly enhanced thermal stability with the addition of the amine-functionalized Pr6O11 nanoparticles. Furthermore, they possess weak temperature dependence of the conductivity and the highest specific capacitance of 400 Fg(-1) at the charge-discharge current density of 10 mA cm(-2) in 1.0 M NaNO3 electrolyte solution when being used as the electrode material for supercapacitor. (C) 2011 Elsevier Ltd. All rights reserved.
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