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Development of an enhanced hybrid bi-catalytic electrode containing bimetallic composite catalyst and immobilized enzyme for complete glucose electrooxidation

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dc.contributor.authorFranco, Jefferson Honorio [UNESP]
dc.contributor.authorBonaldo, João Victor
dc.contributor.authorda Silva, Rodrigo Garcia
dc.contributor.authorMinteer, Shelley D.
dc.contributor.authorDe Andrade, Adalgisa R. [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Utah
dc.date.accessioned2023-07-29T13:11:27Z
dc.date.available2023-07-29T13:11:27Z
dc.date.issued2023-09-01
dc.description.abstractWe describe an enzymatic fuel cell (EFC) that can electrooxidize glucose completely. The EFC contains the hybrid Ni@Pt-CNT/OxOx bioanode, composed of a bimetallic composite catalyst (Ni@Pt-CNT) and the enzyme oxalate oxidase (OxOx), which can cleave carbon-carbon bonds. Ni@Pt-CNT/OxOx displayed 3-fold higher catalytic activity in the presence than in the absence of glucose (1.3 and 0.4 mA cm−2, respectively), indicating that Ni@Pt-CNT and OxOx acted synergistically. Electrochemical impedance spectroscopy showed that Ni@Pt-CNT/OxOx had higher charge transfer resistance and double layer capacitance than Ni@Pt-CNT. Long-term bulk electrolysis (18 h) revealed that the EFC operating with Ni@Pt-CNT/OxOx presented better current density and stability than the electrochemical cell operating with Ni@Pt-CNT, so deep glucose electrooxidation generated energy. The glucose oxidation products detected by HPLC-UV/RID confirmed that glucose was fully electrooxidized, and that 24 electrons were harvested from it. The hybrid Ni@Pt-CNT/OxOx bioanode developed herein could be used in cascade reactions, to provide an EFC with promising application in self-powered electronic devices.en
dc.description.affiliationDepartment of Chemistry Faculty of Philosophy Sciences and Letters at Ribeirão Preto University of São Paulo, SP
dc.description.affiliationUNESP National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355, SP
dc.description.affiliationDepartment of Chemistry University of Utah
dc.description.affiliationUnespUNESP National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355, SP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipMultidisciplinary University Research Initiative
dc.description.sponsorshipIdFAPESP: 2014/50924–4, 2017/20431–7, 2018/24180–1
dc.description.sponsorshipIdFAPESP: 2021-01134-7
dc.description.sponsorshipIdMultidisciplinary University Research Initiative: W911NF-14-1-0263
dc.identifierhttp://dx.doi.org/10.1016/j.biosx.2023.100354
dc.identifier.citationBiosensors and Bioelectronics: X, v. 14.
dc.identifier.doi10.1016/j.biosx.2023.100354
dc.identifier.issn2590-1370
dc.identifier.scopus2-s2.0-85154044857
dc.identifier.urihttp://hdl.handle.net/11449/247272
dc.language.isoeng
dc.relation.ispartofBiosensors and Bioelectronics: X
dc.sourceScopus
dc.subjectEnzymatic biofuel cell
dc.subjectGlucose
dc.subjectHybrid system
dc.subjectMetallic catalyst
dc.subjectOxalate oxidase
dc.titleDevelopment of an enhanced hybrid bi-catalytic electrode containing bimetallic composite catalyst and immobilized enzyme for complete glucose electrooxidationen
dc.typeArtigopt
dspace.entity.typePublication
unesp.author.orcid0000-0002-1170-5108 0000-0002-1170-5108[1]
unesp.author.orcid0000-0002-4565-2761[2]
unesp.author.orcid0000-0002-4121-0384 0000-0002-4121-0384[5]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt

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Araraquara - IQAR - Instituto de Química