dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFugivara, Cecilio Sadao
dc.creatorSumodjo, PTA
dc.creatorCardoso, Arnaldo Alves
dc.creatorBenedetti, Assis Vicente
dc.date2014-05-20T15:29:26Z
dc.date2016-10-25T18:04:42Z
dc.date2014-05-20T15:29:26Z
dc.date2016-10-25T18:04:42Z
dc.date1996-04-01
dc.date.accessioned2017-04-06T00:12:03Z
dc.date.available2017-04-06T00:12:03Z
dc.identifierAnalyst. Cambridge: Royal Soc Chemistry, v. 121, n. 4, p. 541-545, 1996.
dc.identifier0003-2654
dc.identifierhttp://hdl.handle.net/11449/39036
dc.identifierhttp://acervodigital.unesp.br/handle/11449/39036
dc.identifier10.1039/an9962100541
dc.identifierWOS:A1996UG29600031
dc.identifierhttp://dx.doi.org/10.1039/an9962100541
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/882024
dc.descriptionThe electrochemical oxidation of cyanide in alkaline media was studied at different pH levels on SnO2 doped with Sb supported on titanium, at 25 degrees C, the electrooxidation of CN- at constant current follows a first-order rate law with a half life of t(1/2) = 35 min on SnO2-SbOx electrodes and t(1/2) = 69 min on SnO2-SbOx-RuO2 electrodes, in K2SO4(aq), pH 12, the reaction rate increases with the applied current and tends to reach a plateau when j > 20 mA cm(-2), In the pH range 10-13.5 the reaction rate diminishes as pH is increased owing to an increasing competition between CN- and OH- ions for the electrode surface. Addition of chloride to the solution does not alter the rate law but increases the reaction rate, A mechanism is proposed to explain the observed behaviour.
dc.languageeng
dc.publisherRoyal Soc Chemistry
dc.relationAnalyst
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectcyanide electrooxidation
dc.subjecttin dioxide doped electrodes
dc.subjectkinetic study of cyanide oxidation
dc.titleElectrochemical decomposition of cyanides on tin dioxide electrodes in alkaline media
dc.typeOtro


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