Electrooxidation methods to produce pseudocapacitance-containing porous carbons

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/35234
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Title: Electrooxidation methods to produce pseudocapacitance-containing porous carbons
Authors: Tabti, Zakaria | Berenguer Betrián, Raúl | Ruiz-Rosas, Ramiro | Quijada Tomás, César | Morallon, Emilia | Cazorla-Amorós, Diego
Research Group/s: Electrocatálisis y Electroquímica de Polímeros | Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Porous carbon | Electrooxidation | Pseudocapacitance | Electrochemical capacitors
Knowledge Area: Química Física | Química Inorgánica
Issue Date: 5-Oct-2013
Publisher: The Electrochemical Society of Japan
Citation: Electrochemistry. 2013, 81(10): 833-839. doi:10.5796/electrochemistry.81.833
Abstract: Surface oxygen groups play a key role on the performance of porous carbon electrodes for electrochemical capacitors in aqueous media. The electrooxidation method in NaCl electrolyte using a filter press cell and dimensionally stable anodes is proposed as a viable process for the generation of oxygen groups on porous carbon materials. The experimental set-up is so flexible that allows the easy modification of carbon materials with different configurations, i.e. cloths and granular, obtaining different degrees of oxidation for both conformations without the requirement of binders and conductivity promoters. After the electrooxidation method, the attained porosity is maintained between 90 and 75% of the initial values. The surface oxygen groups generated can increase the capacitance up to a 30% when compared to the pristine material. However, a severe oxidation is detrimental since it may decrease the conductivity and increase the resistance for ion mobility.
Sponsor: We thank the Generalitat Valenciana and FEDER (PROMETEO/2009/047) and the Spanish Ministry of Economy and Competitiveness (Projects CTQ2012-31762 and MAT2010-15273) for financial support.
URI: http://hdl.handle.net/10045/35234
ISSN: 1344-3542
DOI: 10.5796/electrochemistry.81.833
Language: eng
Type: info:eu-repo/semantics/article
Rights: © The Electrochemical Society of Japan, All rights reserved
Peer Review: si
Publisher version: http://dx.doi.org/10.5796/electrochemistry.81.833
Appears in Collections:INV - MCMA - Artículos de Revistas
INV - GEPE - Artículos de Revistas

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