Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kwan-San Hui | - |
dc.contributor.author | 유정헌 | - |
dc.date.accessioned | 2020-02-19T16:31:51Z | - |
dc.date.available | 2020-02-19T16:31:51Z | - |
dc.date.issued | 2015-08 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/128110 | - |
dc.identifier.uri | http://hanyang.dcollection.net/common/orgView/200000427073 | en_US |
dc.description.abstract | In this study, a porous CoAl-layered double hydroxide/graphene (G-LDH) composite was fabricated onto an ammonia/ethylene glycol interface using a simple gas-liquid interfacial method. The porous G-LDH composite was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, and field emission scanning electron microscopy. The obtained composite achieved a specific capacitance of 479.2 F g-1 and 341.2 F g-1 at a current density of 1 A g-1 and 10 A g-1, respectively. The obtained specific capacitance values were much higher than those of the pure LDH sample fabricated by the gas-liquid interfacial method and the LDH/graphene sample synthesized by the conventional hydrothermal method. In addition, the prepared sample has a specific surface area of 98.2 m2 g-1 and a pore volume of 0.42 cm3 g-1, which indicated that the gas-liquid interfacial method can control the precipitation of CoAl-LDH on GNS, leading to the porous of the G-LDH composite. Moreover, the G-LDH composite exhibited long and excellent cycle stability with 93.9% of the specific capacitance retained at 3 A g-1 after the 2000th cycle. This study introduces a promising approach to fabricate porous layered double hydroxide/graphene composite with high specific capacitance, large specific surface area, long cycle life and excellent cycle stability. | - |
dc.publisher | 한양대학교 | - |
dc.title | Preparation of Porous CoAl-layered Double Hydroxide/Graphene Composite with Enhanced Capacitive Performance for Supercapacitors | - |
dc.type | Theses | - |
dc.contributor.googleauthor | 유정헌 | - |
dc.sector.campus | S | - |
dc.sector.daehak | 대학원 | - |
dc.sector.department | 융합기계공학과 | - |
dc.description.degree | Master | - |
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