| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Covalent-bonding Layer-by-Layer Assembly of MWCNT/Iron Oxide nanoparticle Multilayers with High Electrochemical Performance and Stability |
| 초록 |
Hybrid supercapcitor electrodes based on (MWCNT/Iron oxide nanoparticle (NP))n multilayer thin film with high electrochemical performance and stability were prepared using a covalent-bonding layer-by-layer (LbL) assembly in organic media. It is originated from the high affinity between MWCNT and oleic acid-stabilzed Fe3O4 NP (OA-Fe3O4 NP). Covalent-bonded (MWCNT/Iron oxide NP)n multilayer electrodes were showed the extremely high film density of approximately 1.92 g·cm-3 due to dense packing of OA-Fe3O4 NPs onto conductive and porous MWCNT layer. The resulting multilayer electrodes were exhibited high volumetric capacitoance of ~ 248 ± 15 F·cm-3 (127 ± 7 F·g-1) at a scan rate of 5 mV·s-1 in aqueous electrolyte despite the theoretically low specific capacity of the Fe3O4 NP. In addition, the performance of these multilayer electrodes were retained 99.2 % of their initial capacitance after 1000 cycles. |
| 저자 |
고용민, 조진한
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| 소속 |
고려대 |
| 키워드 |
Multiwall carbon nanotube; Hybrid supercapacitor; Fe3O4 nanoparticle; Multilayer; Layer-by-Layer assembly
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| E-Mail |
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