DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Do Youb | ko |
dc.contributor.author | Kim, Mokwon | ko |
dc.contributor.author | Kim, Dong Wook | ko |
dc.contributor.author | Suk, Jungdon | ko |
dc.contributor.author | Park, Jung Jin | ko |
dc.contributor.author | Park, O. Ok | ko |
dc.contributor.author | Kang, Yongku | ko |
dc.date.accessioned | 2016-06-07T08:52:11Z | - |
dc.date.available | 2016-06-07T08:52:11Z | - |
dc.date.created | 2016-03-14 | - |
dc.date.created | 2016-03-14 | - |
dc.date.issued | 2016-04 | - |
dc.identifier.citation | CARBON, v.100, pp.265 - 272 | - |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.uri | http://hdl.handle.net/10203/207590 | - |
dc.description.abstract | In non-aqueous Li-O-2 batteries, relatively large amounts of discharge products are formed on air cathodes. As such, the expansion of air cathodes is a critical issue that remains to be solved. Here, we report the fabrication of highly porous free-standing graphene paper by introducing macropores within the paper using polystyrene colloidal particles as a sacrificial template. The as-prepared macroporous graphene paper (mp-GP) have a large BrunauereEmmetteTeller (BET) surface area (ca. 373 m(2) g(-1)), a large pore volume (ca. 10.9 cm(3) g(-1)), and a high porosity (91.6%). Owing to the high surface area and large pore volume, the mp-GPs exhibit a high specific capacity of ca. 12,200 mAh g(-1) at a current density of 200 mA g(-1), as well as good rate capability, when used as an air cathode in a non-aqueous Li-O-2 battery. Moreover, the mp-GP shows good stability up to 100 and 78 cycles at a current density of 500 mA g(-1) and 2000 mA g(-1) respectively, with a limiting capacity of 1000 mAh g(-1). It is found that formation and decomposition of the discharge product, Li2O2, occur within the macropores, and thus, the mp-GP maintains its original structure without considerable expansion during cycling. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | LITHIUM-OXYGEN BATTERIES | - |
dc.subject | RATE CAPABILITY | - |
dc.subject | DOPED GRAPHENE | - |
dc.subject | AIR BATTERIES | - |
dc.subject | CATALYSTS | - |
dc.subject | STABILITY | - |
dc.subject | COMPOSITE | - |
dc.subject | CARBON | - |
dc.subject | BINDER | - |
dc.subject | OXIDE | - |
dc.title | Graphene paper with controlled pore structure for high-performance cathodes in Li-O-2 batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000369961400031 | - |
dc.identifier.scopusid | 2-s2.0-84958167663 | - |
dc.type.rims | ART | - |
dc.citation.volume | 100 | - |
dc.citation.beginningpage | 265 | - |
dc.citation.endingpage | 272 | - |
dc.citation.publicationname | CARBON | - |
dc.identifier.doi | 10.1016/j.carbon.2016.01.013 | - |
dc.contributor.localauthor | Park, O. Ok | - |
dc.contributor.nonIdAuthor | Kim, Do Youb | - |
dc.contributor.nonIdAuthor | Kim, Dong Wook | - |
dc.contributor.nonIdAuthor | Suk, Jungdon | - |
dc.contributor.nonIdAuthor | Kang, Yongku | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LITHIUM-OXYGEN BATTERIES | - |
dc.subject.keywordPlus | RATE CAPABILITY | - |
dc.subject.keywordPlus | DOPED GRAPHENE | - |
dc.subject.keywordPlus | AIR BATTERIES | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | BINDER | - |
dc.subject.keywordPlus | OXIDE | - |
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