Synthesis and Evaluation of Graphene Aerogel-Supported MnxFe3-xO4 for Oxygen Reduction in Urea/O-2 Fuel Cells
DC Field | Value | Language |
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dc.contributor.author | Bejigo, Keyru Serbara | - |
dc.contributor.author | Park, Bang Ju | - |
dc.contributor.author | Kim, Ji Hyeon | - |
dc.contributor.author | Yoon, Hyon Hee | - |
dc.date.available | 2020-02-27T03:41:47Z | - |
dc.date.created | 2020-02-04 | - |
dc.date.issued | 2019-05 | - |
dc.identifier.issn | 2191-1363 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1555 | - |
dc.description.abstract | Graphene aerogel-supported manganese ferrite (MnxFe3-xO4/GAs) and reduced-graphene oxide/manganese ferrite composite (MnFe2O4/rGO) were synthesized and studied as cathode catalysts for oxygen reduction reactions in urea/O-2 fuel cells. MnFe2O4/GAs exhibited a 3D framework with a continuous macroporous structure. Among the investigated Fe/ Mn ratios, the more positive oxygen reduction onset potential was observed with Fe/Mn=2/1. The half-wave potential of MnFe2O4/GAs was considerably more positive than that of MnFe2O4/rGO and comparable with that of Pt/C, while the stability of MnFe2O4/GAs significantly higher than that of Pt/C. The best urea/O-2 fuel cell performance was also observed with the MnFe2O4/GAs. The MnFe2O4/GAs exhibited an OCV of 0.713 V and a maximum power density of 1.7 mWcm(-2) at 60 degrees C. Thus, this work shows that 3D structured graphene aerogelsupported MnFe2O4 catalysts can be used as an efficient cathode material for alkaline fuel cells. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.relation.isPartOf | CHEMISTRYOPEN | - |
dc.subject | LITHIUM-ION BATTERIES | - |
dc.subject | HYBRID COMPOSITE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | OXIDE | - |
dc.subject | NANOCOMPOSITES | - |
dc.subject | PERFORMANCES | - |
dc.subject | ELECTRODE | - |
dc.title | Synthesis and Evaluation of Graphene Aerogel-Supported MnxFe3-xO4 for Oxygen Reduction in Urea/O-2 Fuel Cells | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000472719400008 | - |
dc.identifier.doi | 10.1002/open.201900105 | - |
dc.identifier.bibliographicCitation | CHEMISTRYOPEN, v.8, no.5, pp.615 - 620 | - |
dc.identifier.scopusid | 2-s2.0-85066802295 | - |
dc.citation.endPage | 620 | - |
dc.citation.startPage | 615 | - |
dc.citation.title | CHEMISTRYOPEN | - |
dc.citation.volume | 8 | - |
dc.citation.number | 5 | - |
dc.contributor.affiliatedAuthor | Bejigo, Keyru Serbara | - |
dc.contributor.affiliatedAuthor | Park, Bang Ju | - |
dc.contributor.affiliatedAuthor | Kim, Ji Hyeon | - |
dc.contributor.affiliatedAuthor | Yoon, Hyon Hee | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | oxygen reduction reaction | - |
dc.subject.keywordAuthor | urea fuel cell | - |
dc.subject.keywordAuthor | anode catalyst | - |
dc.subject.keywordAuthor | manganese ferrite | - |
dc.subject.keywordAuthor | graphene aerogel | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | HYBRID COMPOSITE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | PERFORMANCES | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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