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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleImprovement of the electrochemical properties of "as-grown" boron-doped polycrystalline diamond electrodes deposited on tungsten wires using ethanolpt_BR
dc.contributor.authorTeofilo, RFpt_BR
dc.contributor.authorCeragioli, HJpt_BR
dc.contributor.authorPeterlevitz, ACpt_BR
dc.contributor.authorDa Silva, LMpt_BR
dc.contributor.authorDamos, FSpt_BR
dc.contributor.authorFerreira, MMCpt_BR
dc.contributor.authorBaranauskas, Vpt_BR
dc.contributor.authorKubota, LTpt_BR
unicamp.author.emailvitor.baranauskas@gmail.compt_BR
unicamp.authorUniv Estadual Campinas, Fac Elect & Comp Engn, BR-13083852 Campinas, SP, Brazil Univ Estadual Campinas, Inst Quim, BR-13084852 Campinas, SP, Brazil Univ Fed Vales Jequitinhonha & Mucuri, Dept Quim, FACESA, BR-39100000 Diamantina, MG, Brazilpt_BR
dc.subjectboron-doped diamond electrodespt_BR
dc.subjectethanolpt_BR
dc.subjectcathodic pretreatmentpt_BR
dc.subjectEISpt_BR
dc.subject.wosThin-film Electrodespt_BR
dc.subject.wosGlassy-carbon Electrodespt_BR
dc.subject.wosChemical-vapor-depositionpt_BR
dc.subject.wosTransfer Kineticspt_BR
dc.subject.wosSurfacept_BR
dc.subject.wosHydrogenpt_BR
dc.subject.wosEnhancementpt_BR
dc.subject.wosNucleationpt_BR
dc.subject.wosMobilitypt_BR
dc.subject.wosEnergypt_BR
dc.description.abstractThe electrochemical properties of boron-doped diamond (BDD) polycrystalline films grown on tungsten wire substrates using ethanol as a precursor are described. The results obtained show that the use of ethanol improves the electrochemistry properties of "as-grown" BDD, as it minimizes the graphitic phase upon the surface of BDD, during the growth process. The BDD electrodes were characterized by Raman spectroscopy, scanning electronic microscopy, cyclic voltammetry ( CV), and electrochemical impedance spectroscopy ( EIS). The boron-doping levels of the films were estimated to be similar to 10(20) B/cm(3). The electrochemical behavior was evaluated using the Fe(CN)(6)(3-/4-) and Ru(NH3)(6)(3-/4-) redox couples and dopamine. Apparent heterogeneous electro-transfer rate constants k(app)(0) were determined for these redox systems using the CV and EIS techniques. k(app)(0) values in the range of 0.01-0.1 cm s(-1) were observed for the Fe(CN)(6)(3-/4-) and Ru(NH3)(6)(3-/4-) redox couples, while in the special case of dopamine, a lower k(app)(0) value of 10(-5) cm s(-1) was found. The obtained results showed that the use of CH3CH2OH (ethanol) as a carbon source constitutes a promising alternative for manufacturing BDD electrodes for electroanalytical applications.pt
dc.relation.ispartofJournal Of Solid State Electrochemistrypt_BR
dc.relation.ispartofabbreviationJ. Solid State Electrochem.pt_BR
dc.publisher.cityNew Yorkpt_BR
dc.publisher.countryEUApt_BR
dc.publisherSpringerpt_BR
dc.date.issued2007pt_BR
dc.date.monthofcirculationOCTpt_BR
dc.identifier.citationJournal Of Solid State Electrochemistry. Springer, v. 11, n. 10, n. 1449, n. 1457, 2007.pt_BR
dc.language.isoenpt_BR
dc.description.volume11pt_BR
dc.description.issuenumber10pt_BR
dc.description.firstpage1449pt_BR
dc.description.lastpage1457pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0pt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn1432-8488pt_BR
dc.identifier.eissn1433-0768pt_BR
dc.identifier.wosidWOS:000248613200014pt_BR
dc.identifier.doi10.1007/s10008-007-0319-zpt_BR
dc.date.available2014-11-14T16:19:17Z
dc.date.available2015-11-26T16:07:31Z-
dc.date.accessioned2014-11-14T16:19:17Z
dc.date.accessioned2015-11-26T16:07:31Z-
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dc.description.provenanceMade available in DSpace on 2015-11-26T16:07:31Z (GMT). No. of bitstreams: 2 WOS000248613200014.pdf: 321477 bytes, checksum: 99c77066fdeaa715dc32b6255ea96d1d (MD5) WOS000248613200014.pdf.txt: 36548 bytes, checksum: 8c1811a9142a57aeb47bb45f30c5bfc2 (MD5) Previous issue date: 2007en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/69266pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/69266
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/69266-
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