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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.creator | Santos, Márcia S. S. | - |
Autor(es): dc.creator | Peixoto, Luciana | - |
Autor(es): dc.creator | Mushtaq, Kashif | - |
Autor(es): dc.creator | Ferreira, Célia | - |
Autor(es): dc.creator | Mendes, Adélio | - |
Autor(es): dc.creator | Alves, M. Madalena | - |
Data de aceite: dc.date.accessioned | 2022-09-01T13:00:46Z | - |
Data de disponibilização: dc.date.available | 2022-09-01T13:00:46Z | - |
Data de envio: dc.date.issued | 2022-03-04 | - |
Data de envio: dc.date.issued | 2022-03-04 | - |
Data de envio: dc.date.issued | 2021-07 | - |
Data de envio: dc.date.issued | 2022-01-14 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/10400.2/11798 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/10400.2/11798 | - |
Descrição: dc.description | Bioelectrochemical systems (BESs) can be used to transform the electrochemical energy of fuels in electricity in Microbial Fuel Cells (MFC). However, this generated bioenergy can be captured by external loads or dissipated as heat, instead of being utilized or stored. A Microbial Redox Flow Cell (MRFC) is here presented, which demonstrates the integration of a BESs with a Redox Flow Cell (RFC); it is an innovative approach to store the energy released by the electroactive bacteria into storable electrochemical energy (electrochemical fuels) easily and effciently convertible into electricity. The MRFC uses Geobacter sulfurreducens as biocatalyst: (i) operating as Exoelectrogenic Bacteria for the reduction of the redox pair anthraquinone-2,6-disulfonate (2,6-AQDS) in anthrahydroquinone-2,6-disulfonate (2,6-AQDSH2) (BESs as bioanode of MRFC) and (ii) operating as Electrotrophic Bacteria for oxidation of the redox pair ferrocyanide ([Fe(CN)6] 4−) to ferricyanide ([Fe(CN)6] 3−) (BESs as biocathode of MRFC). In the reduction of 2,6-AQDS, current density of 0.048 mA cm−2 was recorded with a bioconversion to 2,6-AQDSH2 of ca. 27%. As for the oxidation of [Fe(CN)6] 4−, 35.7% was oxidized to [Fe(CN)6] 3−. The bio-converted electrochemical fuels were introduced in a RFC, 2,6-AQDSH2 as negalyte and ferricyanide ([Fe(CN)6] 3−) as posilyte. An MRFC, operating with 29 cycles reached Coulombic effciencies of ca. 99% and Energy effciencies of ca. 55%. The concept of a MRFC is successfully demonstrated. | - |
Descrição: dc.description | M.S.S. Santos is grateful to Portuguese Foundation for Science and Technology (FCT) for her PhD fellow (reference: SFRH/BD/104087/2014). Kashif Mushtaq is grateful to MIT Portugal Program for his doctoral grant (PD/BD/128041/2016) under the scope of the FCT. The authors would like to acknowledge to the FCT under the scope of the strategic funding of UID/BIO/04469 unit and COMPETE 2020 (POCI01-0145-FEDER-006684) and BioTecNorte operation (NORTE-01-0145-FEDER-000004) funded by the European Regional Development Fund (ERDF), under the scope of Norte2020 - Programa Operacional Regional do Norte. The authors also acknowledge the Projects: i) POCI-01-0145-FEDER-006939 (LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy – UID/EQU/00511/2013), fundedby the ERDF, through COMPETE2020 – Programa Operacional Competitividade e Internacionalização (POCI) and by nationals funds through FCT, ii) by the Project SunStorage - Harvesting and storage of solar energy”, with reference POCI-01-0145-FEDER-016387, funded by ERDF, through COMPETE 2020 –POCI), and by national funds, through FCT; (iii) Project PTDC/EQU-EQU/30510/2017 - POCI-01-0145-FEDER-030510 – Sunfow “Solar energy storage into redox fow batteries” funded by FEDER funds through COMPETE2020 - Programa Operacional Competitividade e Internacionalização (POCI) and by national funds (PIDDAC) through FCT/MCTES and iV) NORTE-01-0145-FEDER-000005 – LEPABE-2-ECO-INNOVATION, supported by North Portugal Regional Operational Programme (Norte 2020), under the Portugal 2020 Partnership Agreement, through the ERDF. The authors are indebted with all the colleagues who assisted in the laboratory work. | - |
Descrição: dc.description | info:eu-repo/semantics/publishedVersion | - |
Idioma: dc.language | en | - |
Relação: dc.relation | SFRH/BD/104087/2014 | - |
Relação: dc.relation | PD/BD/128041/2016 | - |
Relação: dc.relation | POCI01-0145-FEDER-006684 | - |
Relação: dc.relation | NORTE-01-0145-FEDER-000004 | - |
Relação: dc.relation | POCI-01-0145-FEDER-006939 | - |
Relação: dc.relation | info:eu-repo/grantAgreement/FCT/5876/147284/PT | - |
Relação: dc.relation | POCI-01-0145-FEDER-016387 | - |
Relação: dc.relation | PTDC/EQU-EQU/30510/2017 | - |
Relação: dc.relation | POCI-01-0145-FEDER-030510 | - |
Direitos: dc.rights | restrictedAccess | - |
Palavras-chave: dc.subject | Microbial redox fow cell | - |
Palavras-chave: dc.subject | Bioelectrochemical systems | - |
Palavras-chave: dc.subject | Redox fow cells | - |
Palavras-chave: dc.subject | Energy conversion | - |
Palavras-chave: dc.subject | Bioenergy storage | - |
Título: dc.title | Bioelectrochemical energy storage in a microbial redox flow cell | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Aberto - Universidade Aberta (Portugal) |
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