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Lee, Zonghoon
Atomic-Scale Electron Microscopy Lab.
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dc.citation.startPage e378 -
dc.citation.title NPG ASIA MATERIALS -
dc.citation.volume 9 -
dc.contributor.author Akbar, Kamran -
dc.contributor.author Kim, Jung Hwa -
dc.contributor.author Lee, Zonghoon -
dc.contributor.author Kim, Minsoo -
dc.contributor.author Yi, Yeonjin -
dc.contributor.author Chun, Seung-Hyun -
dc.date.accessioned 2023-12-21T22:15:10Z -
dc.date.available 2023-12-21T22:15:10Z -
dc.date.created 2017-06-09 -
dc.date.issued 2017-05 -
dc.description.abstract Hydrazine fuel-cell technology holds great promise for clean energy, not only because of the greater energy density of hydrazine compared to hydrogen but also due to its safer handling owing to its liquid state. However, current technologies involve the use of precious metals (such as platinum) for hydrazine oxidation, which hinders the further application of hydrazine fuel-cell technologies. In addition, little attention has been devoted to the management of gas, which tends to become stuck on the surface of the electrode, producing overall poor electrode efficiencies. In this study, we utilized a nano-hill morphology of vertical graphene, which efficiently resolves the issue of the accumulation of gas bubbles on the electrode surface by providing a nano-rough-edged surface that acts as a superaerophobic electrode. The growth of the vertical graphene nano-hills was achieved and optimized by a scalable plasma-enhanced chemical vapor deposition method. The resulting metal-free graphene-based electrode showed the lowest onset potential (-0.42 V vs saturated calomel electrode) and the highest current density of all the carbon-based materials reported previously for hydrazine oxidation. -
dc.identifier.bibliographicCitation NPG ASIA MATERIALS, v.9, pp.e378 -
dc.identifier.doi 10.1038/am.2017.55 -
dc.identifier.issn 1884-4049 -
dc.identifier.scopusid 2-s2.0-85019850896 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/22213 -
dc.identifier.url https://www.nature.com/am/journal/v9/n5/full/am201755a.html -
dc.identifier.wosid 000401611600001 -
dc.language 영어 -
dc.publisher NATURE PUBLISHING GROUP -
dc.title Superaerophobic graphene nano-hills for direct hydrazine fuel cells -
dc.type Article -
dc.description.isOpenAccess TRUE -
dc.relation.journalWebOfScienceCategory Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Materials Science -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus NITROGEN-DOPED GRAPHENE -
dc.subject.keywordPlus OXYGEN REDUCTION -
dc.subject.keywordPlus HYDROGEN EVOLUTION -
dc.subject.keywordPlus LARGE-SCALE -
dc.subject.keywordPlus OXIDATION -
dc.subject.keywordPlus CATALYST -
dc.subject.keywordPlus ELECTROCATALYST -
dc.subject.keywordPlus PERFORMANCE -
dc.subject.keywordPlus ELECTRODES -
dc.subject.keywordPlus NANOSHEETS -

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