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

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Utah-
Autor(es): dc.creatorFranco, Jefferson Honorio-
Autor(es): dc.creatorBonaldo, João Victor-
Autor(es): dc.creatorda Silva, Rodrigo Garcia-
Autor(es): dc.creatorMinteer, Shelley D.-
Autor(es): dc.creatorDe Andrade, Adalgisa R.-
Data de aceite: dc.date.accessioned2025-08-21T15:46:04Z-
Data de disponibilização: dc.date.available2025-08-21T15:46:04Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.biosx.2023.100354-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247272-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247272-
Descrição: dc.descriptionWe 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.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionMultidisciplinary University Research Initiative-
Descrição: dc.descriptionDepartment of Chemistry Faculty of Philosophy Sciences and Letters at Ribeirão Preto University of São Paulo, SP-
Descrição: dc.descriptionUNESP 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-
Descrição: dc.descriptionDepartment of Chemistry University of Utah-
Descrição: dc.descriptionUNESP 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-
Descrição: dc.descriptionFAPESP: 2014/50924–4, 2017/20431–7, 2018/24180–1-
Descrição: dc.descriptionFAPESP: 2021-01134-7-
Descrição: dc.descriptionMultidisciplinary University Research Initiative: W911NF-14-1-0263-
Idioma: dc.languageen-
Relação: dc.relationBiosensors and Bioelectronics: X-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEnzymatic biofuel cell-
Palavras-chave: dc.subjectGlucose-
Palavras-chave: dc.subjectHybrid system-
Palavras-chave: dc.subjectMetallic catalyst-
Palavras-chave: dc.subjectOxalate oxidase-
Título: dc.titleDevelopment of an enhanced hybrid bi-catalytic electrode containing bimetallic composite catalyst and immobilized enzyme for complete glucose electrooxidation-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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