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dc.contributor.authorJi, Jungyeon-
dc.contributor.authorKyungmin Yim-
dc.contributor.authorAn, Heeyeon-
dc.contributor.authorYoo, Sung Jong-
dc.contributor.authorChung, Yongjin-
dc.contributor.authorKim, Jinsoo-
dc.contributor.authorKwon, Yongchai-
dc.date.accessioned2024-01-19T13:00:35Z-
dc.date.available2024-01-19T13:00:35Z-
dc.date.created2022-01-25-
dc.date.issued2022-02-
dc.identifier.issn0363-907X-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/115782-
dc.description.abstractHollow cobalt nitrogen-doped carbon (H-CoNC) is suggested for use in the membraneless hydrogen peroxide fuel cell (HPFC) and enzymatic biofuel cell (EBC) as anodic catalyst boosting hydrogen peroxide oxidation reaction (HPOR). For fabricating H-CoNCs, a facile spray pyrolysis-assisted process is used, and such produced H-CoNCs show a porous and hollow-shell structure, while they include a large amount of isolated Co atoms and coordinate bonds with Co and nitrogen (Co-N-4). This structure promotes mass transfer to the active site and excellent catalytic activity for HPOR. With these benefits of H-CoNCs, the current density of the bioanode consisting of H-CoNC, carbon nanotube, and glucose oxidase (H-CoNC/CNT/GOx) observed at 0.3 V under 150 mM glucose is 315.5 mu A cm(-2), which is 2.1 times higher than that of a conventionally synthesized catalyst using Co-doped carbon nanoparticles (CoNC-NPs) (CoNC-NPs/CNT/GOx, 146.2 mu A cm(-2)). With this superior catalytic activity for HPOR, maximum power density (MPD) of membraneless EBC using H-CoNC/CNT/GOx is 33.8 +/- 4.52 mu W cm(-2), which is 52% higher than that of CoNP-NPs/CNT/GOx. In addition, a membraneless HPFC using H-CoNC/CNT demonstrates 4.87 times higher MPD (231.3 +/- 11.3 mu W cm(-2)) than that using CoNC-NPs/CNT, proving that H-CoNC improves the performance of fuel cells by its excellent catalytic activity.-
dc.languageEnglish-
dc.publisherJohn Wiley & Sons Inc.-
dc.titleSpray pyrolysis-assisted synthesis of hollow cobalt nitrogen-doped carbon catalyst for the performance enhancement of membraneless fuel cells-
dc.typeArticle-
dc.identifier.doi10.1002/er.7200-
dc.description.journalClass1-
dc.identifier.bibliographicCitationInternational Journal of Energy Research, v.46, no.2, pp.760 - 773-
dc.citation.titleInternational Journal of Energy Research-
dc.citation.volume46-
dc.citation.number2-
dc.citation.startPage760-
dc.citation.endPage773-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000687875000001-
dc.identifier.scopusid2-s2.0-85113291829-
dc.relation.journalWebOfScienceCategoryEnergy & Fuels-
dc.relation.journalWebOfScienceCategoryNuclear Science & Technology-
dc.relation.journalResearchAreaEnergy & Fuels-
dc.relation.journalResearchAreaNuclear Science & Technology-
dc.type.docTypeArticle; Early Access-
dc.subject.keywordPlusGLUCOSE-OXIDASE-
dc.subject.keywordPlusHYDROGEN-PEROXIDE-
dc.subject.keywordPlusBIOFUEL CELLS-
dc.subject.keywordPlusELECTRON-TRANSFER-
dc.subject.keywordPlusAXIAL LIGAND-
dc.subject.keywordPlusOXIDATION-
dc.subject.keywordPlusPOLYMER-
dc.subject.keywordPlusPLATINUM-
dc.subject.keywordPlusCATHODE-
dc.subject.keywordPlusELECTROCHEMISTRY-
dc.subject.keywordAuthorhydrogen peroxide oxidation reaction-
dc.subject.keywordAuthorsingle-atomic catalyst-
dc.subject.keywordAuthorcobalt-doped carbon-
dc.subject.keywordAuthorenzymatic biofuel cell-
dc.subject.keywordAuthorhydrogen peroxide fuel cell-
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