Publications
Detailed Information
3D Macroporous Graphene Frameworks for Supercapacitors with High Energy and Power Densities
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Bong Gill | - |
dc.contributor.author | Yang, MinHo | - |
dc.contributor.author | Hong, Won Hi | - |
dc.contributor.author | Choi, Jang Wook | - |
dc.contributor.author | Huh, Yun Suk | - |
dc.date.accessioned | 2020-03-16T10:57:40Z | - |
dc.date.available | 2020-03-16T10:57:40Z | - |
dc.date.created | 2018-07-02 | - |
dc.date.issued | 2012-05 | - |
dc.identifier.citation | ACS Nano, Vol.6 No.5, pp.4020-4028 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.other | 38506 | - |
dc.identifier.uri | https://hdl.handle.net/10371/164551 | - |
dc.description.abstract | In order to develop energy storage devices with high power and energy densities, electrodes should hold well-defined pathways for efficient Ionic and electronic transport. Herein, we demonstrate high-performance supercapacitors by building a three-dimensional (3D) macroporous structure that consists of chemically modified graphene (CMG). These 3D macroporous electrodes, namely, embossed-CMG (e-CMG) films, were fabricated by using polystyrene colloidal particles as a sacrificial template. Furthermore, for further capacitance boost, a thin layer of MnO2 was additionally deposited onto e-CMG. The porous graphene structure with a large surface area facilitates fast ionic transport within the electrode while preserving decent electronic conductivity and thus endows MnO2/e-CMG composite electrodes with excellent electrochemical properties such as a specific capacitance of 389 F/g at 1 A/g and 97.7% capacitance retention upon a current Increase to 35 A/g. Moreover, when the MnO2/e-CMG composite electrode was asymmetrically assembled with an e-CMG electrode, the assembled full cell shows remarkable cell performance: energy density of 44 Wh/kg, power density of 25 kW/kg, and excellent cycle life. | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society | - |
dc.title | 3D Macroporous Graphene Frameworks for Supercapacitors with High Energy and Power Densities | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 최장욱 | - |
dc.identifier.doi | 10.1021/nn3003345 | - |
dc.citation.journaltitle | ACS Nano | - |
dc.identifier.wosid | 000304231700041 | - |
dc.identifier.scopusid | 2-s2.0-84862894222 | - |
dc.citation.endpage | 4028 | - |
dc.citation.number | 5 | - |
dc.citation.startpage | 4020 | - |
dc.citation.volume | 6 | - |
dc.identifier.sci | 000304231700041 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Choi, Jang Wook | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | PERFORMANCE ELECTROCHEMICAL CAPACITORS | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | ULTRACAPACITORS | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | MNO2 | - |
dc.subject.keywordAuthor | porous material | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | composites | - |
dc.subject.keywordAuthor | ion transport | - |
dc.subject.keywordAuthor | energy storage | - |
- Appears in Collections:
- Files in This Item:
- There are no files associated with this item.
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.