| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 봄 (05/01 ~ 05/03, ICC JEJU) |
| 권호 |
17권 1호 |
| 발표분야 |
포스터-정밀화학 |
| 제목 |
Preparation and electrochemical analysis of nickel hydroxide-decorated graphene composite electrodes |
| 초록 |
Nickel hydroxide (Ni(OH)2)/graphene nanosheet (GNS) composites were prepared by a facile chemical precipitation. The structure, morphology and crystallinity of the composites were examined by scanning electron microscopy (SEM), transition electron microscopy (TEM) and X-ray diffraction (XRD). Electrochemical properties were characterized by cyclic voltammetry (CV) in 6M KOH electrolyte. The Ni(OH)2/GNS composites exhibit the higher specific capacitance than the pure individual component. A maximum specific capacitance of 902.7 F/g could be obtained at 5 mV/s. The improved electrochemical performance is obtained by both the Ni(OH)2 nanoparticle that offer large accessible surface area and the hydrophilic functional groups on grapheme that facilitate electrolyte transport. These Ni(OH)2/GNS composites with high specific capacitance are promising electrode materials for supercapacitors. |
| 저자 |
김지은, 김유나, 김석
|
| 소속 |
부산대 |
| 키워드 |
graphene; nickel hydroxide; supercapacitor
|
| E-Mail |
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