DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hong, Seok Bok | ko |
dc.contributor.author | Jeong, Jae-Min | ko |
dc.contributor.author | Kang, Heon Gyu | ko |
dc.contributor.author | Seo, Donghyuk | ko |
dc.contributor.author | Cha, Younghyun | ko |
dc.contributor.author | Jeon, Hyeonyeol | ko |
dc.contributor.author | Lee, Geun Young | ko |
dc.contributor.author | Irshad, Mobina | ko |
dc.contributor.author | Kim, Do Hyun | ko |
dc.contributor.author | Hwang, Sung Yeon | ko |
dc.contributor.author | Kim, Jung Won | ko |
dc.contributor.author | Choi, Bong Gill | ko |
dc.date.accessioned | 2018-11-12T04:49:48Z | - |
dc.date.available | 2018-11-12T04:49:48Z | - |
dc.date.created | 2018-11-05 | - |
dc.date.created | 2018-11-05 | - |
dc.date.created | 2018-11-05 | - |
dc.date.issued | 2018-10 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v.10, no.41, pp.35250 - 35259 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10203/246535 | - |
dc.description.abstract | The integration of metal oxides and carbon materials provides a great potential for enhancing the high energy and power densities of supercapacitors, but the rational design and scalable fabrication of such composite materials still remain a challenge. Herein, we report a fast, scalable, and one-pot hydrodynamic synthesis for preparing ion conductive and defect-free graphene from graphite and MnO2/graphene nano composites. The use of this hydrodynamic method using Taylor-Couette flow allows us to efficiently fast shear-exfoliate graphite into large quantities of high-quality graphene sheets. Deposition of MnO2 on graphene is subsequently performed in a fluidic reactor within 10 min. The prepared MnO2/graphene nanocomposite shows outstanding electrochemical performances, such as a high specific capacitance of 679 F/g at 25 mV/s, a high rate capability of 74.7% retention at an extremely high rate of 1000 mV/s, and an excellent cycling characteristic (similar to 94.7% retention over 20 000 cycles). An asymmetric supercapacitor device is fabricated by assembling an anode of graphene and a cathode of MnO2/graphene, which resulted in high energy (35.2 W h/kg) and power (7.4 kW/kg) densities (accounting for the mass of both electrodes and the electrolyte) with a high rate capability and long cycle life. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Fast and Scalable Hydrodynamic Synthesis of MnO2/Defect-Free Graphene Nanocomposites with High Rate Capability and Long Cycle Life | - |
dc.type | Article | - |
dc.identifier.wosid | 000447954600046 | - |
dc.identifier.scopusid | 2-s2.0-85054665173 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 41 | - |
dc.citation.beginningpage | 35250 | - |
dc.citation.endingpage | 35259 | - |
dc.citation.publicationname | ACS APPLIED MATERIALS & INTERFACES | - |
dc.identifier.doi | 10.1021/acsami.8b12894 | - |
dc.contributor.localauthor | Kim, Do Hyun | - |
dc.contributor.nonIdAuthor | Hong, Seok Bok | - |
dc.contributor.nonIdAuthor | Kang, Heon Gyu | - |
dc.contributor.nonIdAuthor | Jeon, Hyeonyeol | - |
dc.contributor.nonIdAuthor | Lee, Geun Young | - |
dc.contributor.nonIdAuthor | Irshad, Mobina | - |
dc.contributor.nonIdAuthor | Hwang, Sung Yeon | - |
dc.contributor.nonIdAuthor | Kim, Jung Won | - |
dc.contributor.nonIdAuthor | Choi, Bong Gill | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | hydrodynamics | - |
dc.subject.keywordAuthor | MnO2 | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | nanocomposite | - |
dc.subject.keywordAuthor | supercapacitor | - |
dc.subject.keywordPlus | LIQUID-PHASE EXFOLIATION | - |
dc.subject.keywordPlus | ONE-STEP SYNTHESIS | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | ASYMMETRIC SUPERCAPACITORS | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | NANOSTRUCTURED MNO2 | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | NANOSHEETS | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.