Effect of temperature on the electro-oxidation of ethanol on platinum

dc.creatorCAMARGO, Ana Paula M.
dc.creatorPREVIDELLO, Bruno A. F.
dc.creatorVARELA, Hamilton
dc.creatorGONZALEZ, Ernesto R.
dc.date.accessioned2012-03-26T22:30:55Z
dc.date.accessioned2018-07-04T14:25:45Z
dc.date.available2012-03-26T22:30:55Z
dc.date.available2018-07-04T14:25:45Z
dc.date.created2012-03-26T22:30:55Z
dc.date.issued2010
dc.identifierQuímica Nova, v.33, n.10, p.2143-2147, 2010
dc.identifier0100-4042
dc.identifierhttp://producao.usp.br/handle/BDPI/12153
dc.identifier10.1590/S0100-40422010001000026
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010001000026
dc.identifierhttp://www.scielo.br/pdf/qn/v33n10/26.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1609938
dc.description.abstractWe present in this work an experimental investigation of the effect of temperature (from 25 to 180 ºC) in the electro-oxidation of ethanol on platinum in two different phosphoric acid concentrations. We observed that the onset potential for ethanol electro-oxidation shifts to lower values and the reaction rates increase as temperature is increased for both electrolytes. The results were rationalized in terms of the effect of temperature on the adsorption of reaction intermediates, poisons, and anions. The formation of oxygenated species at high potentials, mainly in the more diluted electrolyte, also contributes to increase the electro-oxidation reaction rate.
dc.languageeng
dc.publisherSociedade Brasileira de Química
dc.relationQuímica Nova
dc.rightsCopyright Sociedade Brasileira de Química
dc.rightsopenAccess
dc.subjectEthanol
dc.subjectFuel cells
dc.subjectHigh temperature
dc.titleEffect of temperature on the electro-oxidation of ethanol on platinum
dc.typeArtículos de revistas


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