Electrochemical methods to enhance the capacitance in activated carbon/polyaniline composites

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/10516
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dc.contributorElectrocatálsis y Electroquímica de Polímerosen
dc.contributorMateriales Carbonosos y Medio Ambienteen
dc.contributor.authorBleda Martínez, María Jesús-
dc.contributor.authorPeng, Chuang-
dc.contributor.authorZhang, Shenguen-
dc.contributor.authorChen, George Z.-
dc.contributor.authorMorallon, Emilia-
dc.contributor.authorCazorla-Amorós, Diego-
dc.contributor.otherUniversidad de Alicante. Departamento de Química Físicaen
dc.contributor.otherUniversidad de Alicante. Departamento de Química Inorgánicaen
dc.contributor.otherUniversidad de Alicante. Instituto Universitario de Materialesen
dc.contributor.otherUniversity of Nottingham. School of Chemical and Environmental Engineeringen
dc.identifier.citationBLEDA MARTÍNEZ, María Jesús, et al. "Electrochemical methods to enhance the capacitance in activated carbon/polyaniline composites". Journal of the Electrochemical Society. Vol. 155, Issue 9 (2008). ISSN 0013-4651, pp. A672-A678en
dc.description.abstractActivated carbon/polyaniline composites have been prepared using different electrochemical methods: single-step potentiostatic polymerization, multiple-step potentiostatic polymerization, and potentiodynamic polymerization with the anodic potential limits being fixed at either 0.75 or 1 V (vs Ag/AgCl). The prepared composite samples were characterized by cyclic voltammetry, galvanostatic charge-discharge tests, electrochemical impedance spectroscopy, and Fourier transform infrared (FTIR) spectroscopy. The synthesis conditions were found to strongly affect the electrochemical behavior of the samples. High capacitance was achieved by the potentiostatic polymerization methods. As a general trend, higher capacitance and lower resistance were observed in the composites than the sum of these parameters of the individual components. This benefit is attributed to the enhanced electron delocalization along the polymer chains in the composites resulting from the influence of the activated carbon, as evidenced by the FTIR. However, an influence of the polyaniline morphology induced by the porous carbon cannot be discarded.en
dc.description.sponsorshipMEC (project no. CTQ2006-08958/PPQ and no. MAT2007-60621) and Generalitat Valenciana-Feder (FTIR Microscopy equipment).en
dc.publisherThe Electrochemical Societyen
dc.rights© The Electrochemical Society, Inc. 2008. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in J. Electrochem. Soc., Volume 155, Issue 9, pp. A672-A678 (2008).en
dc.subjectConducting polymersen
dc.subjectElectrochemical methodsen
dc.subjectActivated carbonen
dc.subject.otherQuímica Físicaen
dc.titleElectrochemical methods to enhance the capacitance in activated carbon/polyaniline compositesen
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