Publicação
Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation
| Resumo: | The decentralized production of bioelectricity as well as the bioremediation of contaminated sediments might be achieved by the incorporation of an anode into anaerobic sediments and a cathode suspended in the water column. In this context, a sediment microbial fuel cell microcosm was carried out using different configurations of electrodes and types of materials (carbon and stainless steel). The results showed a long-term continuous production of electricity (>300 days), with a maximum voltage of approximately 100 mV reached after ~30 days of operation. A twofold increase of voltage was noticed with a twofold increase of surface area (~30 mV to ~60 mV vs. 40 cm2 to 80 cm2), while a threefold increase was obtained after the substitution of a carbon anode by one of stainless steel (~20 mV to ~65 mV vs. 40 cm2 to 812 cm2). Cyclic voltammetry was used to evaluate sediment bacteria electroactivity and to determine the kinetic parameters of redox reactions. The voltammetric results showed that redox processes were limited by the diffusion step and corresponded to a quasi-reversible electron charge transfer. These results are encouraging and give important information for the further optimization of sediment microbial fuel cell performance towards the long-term operation of sediment microbial fuel cell devices. |
|---|---|
| Autores principais: | Peixoto, L. |
| Outros Autores: | Parpot, Pier; Martins, Gilberto |
| Assunto: | bioelectricity sediment microbial fuel cell cyclic voltammetry long-term assessment |
| Ano: | 2019 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1866877091588341760 |
|---|---|
| author | Peixoto, L. |
| author2 | Parpot, Pier Martins, Gilberto |
| author2_role | author author |
| author_facet | Peixoto, L. Parpot, Pier Martins, Gilberto |
| author_role | author |
| contributor_name_str_mv | Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Peixoto, L.\"},{\"Person.name\":\"Parpot, Pier\"},{\"Person.name\":\"Martins, Gilberto\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Peixoto, L. Parpot, Pier Martins, Gilberto |
| datacite.date.Accepted.fl_str_mv | 2019-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2019-02-04T09:52:21Z |
| datacite.date.embargoed.fl_str_mv | 2019-02-04T09:52:21Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | bioelectricity sediment microbial fuel cell cyclic voltammetry long-term assessment |
| datacite.titles.title.fl_str_mv | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| dc.contributor.none.fl_str_mv | Universidade do Minho |
| dc.creator.none.fl_str_mv | Peixoto, L. Parpot, Pier Martins, Gilberto |
| dc.date.Accepted.fl_str_mv | 2019-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2019-02-04T09:52:21Z |
| dc.date.embargoed.fl_str_mv | 2019-02-04T09:52:21Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/58876 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | MDPI |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | bioelectricity sediment microbial fuel cell cyclic voltammetry long-term assessment |
| dc.title.fl_str_mv | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The decentralized production of bioelectricity as well as the bioremediation of contaminated sediments might be achieved by the incorporation of an anode into anaerobic sediments and a cathode suspended in the water column. In this context, a sediment microbial fuel cell microcosm was carried out using different configurations of electrodes and types of materials (carbon and stainless steel). The results showed a long-term continuous production of electricity (>300 days), with a maximum voltage of approximately 100 mV reached after ~30 days of operation. A twofold increase of voltage was noticed with a twofold increase of surface area (~30 mV to ~60 mV vs. 40 cm2 to 80 cm2), while a threefold increase was obtained after the substitution of a carbon anode by one of stainless steel (~20 mV to ~65 mV vs. 40 cm2 to 812 cm2). Cyclic voltammetry was used to evaluate sediment bacteria electroactivity and to determine the kinetic parameters of redox reactions. The voltammetric results showed that redox processes were limited by the diffusion step and corresponded to a quasi-reversible electron charge transfer. These results are encouraging and give important information for the further optimization of sediment microbial fuel cell performance towards the long-term operation of sediment microbial fuel cell devices. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://prod-dspace.uminho.pt/bitstreams/12a9017f-b2cd-451c-9b0a-eb01d25323dd/download |
| id | rum_072b3de53fa4ec3ae40b8dac4e2908f4 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/58876 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/58876 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Peixoto, L. Parpot, Pier Martins, Gilberto |
| publishDate | 2019 |
| publisher.none.fl_str_mv | MDPI |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engMDPIporThe decentralized production of bioelectricity as well as the bioremediation of contaminated sediments might be achieved by the incorporation of an anode into anaerobic sediments and a cathode suspended in the water column. In this context, a sediment microbial fuel cell microcosm was carried out using different configurations of electrodes and types of materials (carbon and stainless steel). The results showed a long-term continuous production of electricity (>300 days), with a maximum voltage of approximately 100 mV reached after ~30 days of operation. A twofold increase of voltage was noticed with a twofold increase of surface area (~30 mV to ~60 mV vs. 40 cm2 to 80 cm2), while a threefold increase was obtained after the substitution of a carbon anode by one of stainless steel (~20 mV to ~65 mV vs. 40 cm2 to 812 cm2). Cyclic voltammetry was used to evaluate sediment bacteria electroactivity and to determine the kinetic parameters of redox reactions. The voltammetric results showed that redox processes were limited by the diffusion step and corresponded to a quasi-reversible electron charge transfer. These results are encouraging and give important information for the further optimization of sediment microbial fuel cell performance towards the long-term operation of sediment microbial fuel cell devices.application/pdfporAssessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operationPeixoto, L.Parpot, PierMartins, GilbertoHostingInstitutionOrganizationalUniversidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf1996-1073DOIIsPartOf10.3390/en120304812019-02-04T09:52:21Z20192019-02-02T15:28:15Z2019-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/58876http://purl.org/coar/access_right/c_abf2open accessbioelectricitysediment microbial fuel cellcyclic voltammetrylong-term assessment2089256 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://prod-dspace.uminho.pt/bitstreams/12a9017f-b2cd-451c-9b0a-eb01d25323dd/download |
| spellingShingle | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation Peixoto, L. bioelectricity sediment microbial fuel cell cyclic voltammetry long-term assessment |
| status | SINGLETON |
| subject.fl_str_mv | bioelectricity sediment microbial fuel cell cyclic voltammetry long-term assessment |
| title | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| title_full | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| title_fullStr | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| title_full_unstemmed | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| title_short | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| title_sort | Assessment of electron transfer mechanisms during a long-term sediment microbial fuel cell operation |
| topic | bioelectricity sediment microbial fuel cell cyclic voltammetry long-term assessment |
| topic_facet | bioelectricity sediment microbial fuel cell cyclic voltammetry long-term assessment |
| url | https://hdl.handle.net/1822/58876 |
| visible | 1 |