Electrochemical Performance of Hierarchical Porous Carbon Materials Obtained from the Infiltration of Lignin into Zeolite Templates

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Title: Electrochemical Performance of Hierarchical Porous Carbon Materials Obtained from the Infiltration of Lignin into Zeolite Templates
Authors: Ruiz-Rosas, Ramiro | Valero-Romero, María José | Salinas Torres, David | Rodríguez-Mirasol, José | Cordero, Tomás | 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: Biomass | Carbon | Electrochemistry | Green chemistry | Zeolites
Knowledge Area: Química Física | Química Inorgánica
Issue Date: May-2014
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Citation: ChemSusChem. 2014, 7(5): 1458-1467. doi:10.1002/cssc.201301408
Abstract: Hierarchical porous carbon materials prepared by the direct carbonization of lignin/zeolite mixtures and the subsequent basic etching of the inorganic template have been electrochemically characterized in acidic media. These lignin-based templated carbons have interesting surface chemistry features, such as a variety of surface oxygen groups and also pyridone and pyridinic groups, which results in a high capacitance enhancement compared to petroleum-pitch-based carbons obtained by the same procedure. Furthermore, they are easily electro-oxidized in a sulfuric acid electrolyte under positive polarization to produce a large amount of surface oxygen groups that boosts the pseudocapacitance. The lignin-based templated carbons showed a specific capacitance as high as 250 F g−1 at 50 mA g−1, with a capacitance retention of 50 % and volumetric capacitance of 75 F cm−3 at current densities higher than 20 A g−1 thanks to their suitable porous texture. These results indicate the potential use of inexpensive biomass byproducts, such as lignin, as carbon precursors in the production of hierarchical carbon materials for electrodes in electrochemical capacitors.
Sponsor: We gratefully thank Generalitat Valenciana and FEDER (PROMETEO/2009/047), the MINECO (Project PRI-PIBJP-2011-0766) and the Junta de Andalucía (Project P10-FQM-6778) for their economic support. M.J.V.R. and D.S.T. gratefully thank the MINECO for FPI fellowships (BES-2010-032213 and BES-2010-035238).
URI: http://hdl.handle.net/10045/46365
ISSN: 1864-5631 (Print) | 1864-564X (Online)
DOI: 10.1002/cssc.201301408
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Peer Review: si
Publisher version: http://dx.doi.org/10.1002/cssc.201301408
Appears in Collections:INV - GEPE - Artículos de Revistas
INV - MCMA - Artículos de Revistas

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