Full metadata record
DC Field | Value | Language |
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dc.citation.startPage | e294 | - |
dc.citation.title | NPG ASIA MATERIALS | - |
dc.citation.volume | 8 | - |
dc.contributor.author | Khan, Ziyauddin | - |
dc.contributor.author | Park, Seungyoung | - |
dc.contributor.author | Hwang, Soo Min | - |
dc.contributor.author | Yang, Juchan | - |
dc.contributor.author | Lee, Youngsu | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.contributor.author | Kim, Youngsik | - |
dc.contributor.author | Ko, Hyunhyub | - |
dc.date.accessioned | 2023-12-21T23:37:05Z | - |
dc.date.available | 2023-12-21T23:37:05Z | - |
dc.date.created | 2016-09-09 | - |
dc.date.issued | 2016-07 | - |
dc.description.abstract | With the increasing demand of cost-effective and high-energy devices, sodium-air (Na-air) batteries have attracted immense interest due to the natural abundance of sodium in contrast to lithium. In particular, an aqueous Na-air battery has fundamental advantage over non-aqueous batteries due to the formation of highly water-soluble discharge product, which improve the overall performance of the system in terms of energy density, cyclic stability and round-trip efficiency. Despite these advantages, the rechargeability of aqueous Na-air batteries has not yet been demonstrated when using non-precious metal catalysts. In this work, we rationally synthesized a binder-free and robust electrode by directly growing urchin-shaped MnO2 nanowires on porous reduced graphene oxide-coated carbon microfiber (MGC) mats and fabricated an aqueous Na-air cell using the MGC as an air electrode to demonstrate the rechargeability of an aqueous Na-air battery. The fabricated aqueous Na-air cell exhibited excellent rechargeability and rate capability with a low overpotential gap (0.7 V) and high round-trip efficiency (81%). We believe that our approach opens a new avenue for synthesizing robust and binder-free electrodes that can be utilized to build not only metal-air batteries but also other energy systems such as supercapacitors, metal-ion batteries and fuel cells. | - |
dc.identifier.bibliographicCitation | NPG ASIA MATERIALS, v.8, pp.e294 | - |
dc.identifier.doi | 10.1038/am.2016.104 | - |
dc.identifier.issn | 1884-4049 | - |
dc.identifier.scopusid | 2-s2.0-85018193890 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/20736 | - |
dc.identifier.url | http://www.nature.com/am/journal/v8/n7/abs/am2016104a.html | - |
dc.identifier.wosid | 000383414800012 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Hierarchical urchin-shaped alpha-MnO2 on graphene-coated carbon microfibers: a binder-free electrode for rechargeable aqueous Na-air battery | - |
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 | OXYGEN REDUCTION REACTION | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | MNO2 NANOSTRUCTURES | - |
dc.subject.keywordPlus | DOPED GRAPHENE | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | ENERGY CAPACITY | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | ELECTROCATALYST | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | LI | - |
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