Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이진규 | * |
dc.date.accessioned | 2021-01-27T16:30:08Z | - |
dc.date.available | 2021-01-27T16:30:08Z | - |
dc.date.issued | 2021 | * |
dc.identifier.issn | 0378-7753 | * |
dc.identifier.issn | 1873-2755 | * |
dc.identifier.other | OAK-28411 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/256214 | - |
dc.description.abstract | In the present study, spinel cobalt ferrite hierarchical flower-like microspheres (CoFe2O4-MS) are fabricated using a hydrothermal method and utilized as a biocompatible anode in microbial fuel cells (MFCs) for power generation. A maximum power density of 1964 mW m(-2) is achieved with CoFe2O4-MS in a mediator-less MFC using Escherichia coli as a biocatalyst and glucose as a fuel. The unprecedented power generation by CoFe2O4-MS can be attributed to (i) the morphology of the flower-like CoFe2O4-MS, with a rough surface and large surface area suitable for biofilm formation, (ii) the rapid immobilization of negatively charged E. coli cells on the positively charged CoFe2O4-MS, facilitating stronger bacterial adhesion between the bacterial cells and CoFe2O4-MS, which leads to lower contact resistance and advantageous interfacial properties with rapid electron transfer, and, more importantly, (iii) enhanced interfacial charge transfer due to the presence of multi-valent cations and multiple valence states in the highly electrocapacitive CoFe2O4-MS. Thus, the enrichment of electroactive E. coli on CoFe2O4-MS produces a large number of electron-shuttling endogenous redox mediators, which promotes efficient extracellular electron transfer between E. coli and the electrocapacitive CoFe2O4-MS during the oxidation of the substrate, thus generating higher power output. | * |
dc.language | English | * |
dc.publisher | ELSEVIER | * |
dc.subject | Cobalt ferrite | * |
dc.subject | Extracellular electron transfer | * |
dc.subject | Escherichia coli | * |
dc.subject | Microbial fuel cell | * |
dc.subject | Power density | * |
dc.title | Cobalt ferrite microspheres as a biocompatible anode for higher power generation in microbial fuel cells | * |
dc.type | Article | * |
dc.relation.volume | 483 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | JOURNAL OF POWER SOURCES | * |
dc.identifier.doi | 10.1016/j.jpowsour.2020.229170 | * |
dc.identifier.wosid | WOS:000621292200003 | * |
dc.identifier.scopusid | 2-s2.0-85096161891 | * |
dc.author.google | Rethinasabapathy, Muruganantham | * |
dc.author.google | Vilian, A. T. Ezhil | * |
dc.author.google | Hwang, Seung Kyu | * |
dc.author.google | Kang, Sung-Min | * |
dc.author.google | Cho, Youngjin | * |
dc.author.google | Han, Young-Kyu | * |
dc.author.google | Rhee, Jin-Kyu | * |
dc.author.google | Huh, Yun Suk | * |
dc.contributor.scopusid | 이진규(56599780300) | * |
dc.date.modifydate | 20240322121516 | * |