A comparative study of the electrogeneration of hydrogen peroxide using Vulcan and Printex carbon supports

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAssumpcao, M. H. M. T.
dc.creatorDe Souza, R. F. B.
dc.creatorRascio, D. C.
dc.creatorSilva, J. C. M.
dc.creatorCalegaro, M. L.
dc.creatorGaubeur, I.
dc.creatorPaixao, T. R. L. C.
dc.creatorHammer, Peter
dc.creatorLanza, M. R. V.
dc.creatorSantos, Mirian Cristina dos
dc.date2014-05-20T15:30:49Z
dc.date2016-10-25T18:06:28Z
dc.date2014-05-20T15:30:49Z
dc.date2016-10-25T18:06:28Z
dc.date2011-07-01
dc.date.accessioned2017-04-06T00:19:06Z
dc.date.available2017-04-06T00:19:06Z
dc.identifierCarbon. Oxford: Pergamon-Elsevier B.V. Ltd, v. 49, n. 8, p. 2842-2851, 2011.
dc.identifier0008-6223
dc.identifierhttp://hdl.handle.net/11449/40126
dc.identifierhttp://acervodigital.unesp.br/handle/11449/40126
dc.identifier10.1016/j.carbon.2011.03.014
dc.identifierWOS:000290083900030
dc.identifierhttp://dx.doi.org/10.1016/j.carbon.2011.03.014
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/882932
dc.descriptionA comparative study of two different conductive carbon-black pigments, Vulcan XC-72 R and Printex L6, for the electrogeneration of hydrogen peroxide (H(2)O(2)) by reducing dissolved oxygen in an alkaline solution was performed. The materials were physically characterized by X-ray diffraction (XRD), Fourier transform infrared attenuated total reflection (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS). XRD shows the presence of SO(2) and ATR-FTIR technique indicates a difference in NO and SO(2) functional groups between the two carbon pigments. XPS indicated presence of SO and NO and more oxygenated acid species on Printex L6. A rotating ring-disk electrode was used for electrochemical analysis of the oxygen reduction reaction (ORR). The results showed that the Printex L6 was better than Vulcan XC-72 R for H(2)O(2) production. Results also indicate that the number of electrons transferred in the ORR for Printex L6 and Vulcan XC-72 R were 2.2 and 2.9, respectively, while the percentages of H(2)O(2) formed were 88% and 51%. Scanning electrochemistry microscopy images confirmed the higher amount of H(2)O(2) formed in the Printex L6 pigment. Printex L6 was shown to be a more promising for H(2)O(2) production than Vulcan XC-72 R, while the latter was shown to have more potential for fuel cells. (C) 2011 Elsevier Ltd. All rights reserved.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherPergamon-Elsevier B.V. Ltd
dc.relationCarbon
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleA comparative study of the electrogeneration of hydrogen peroxide using Vulcan and Printex carbon supports
dc.typeOtro


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