| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
에너지저장·변환_포스터 |
| 제목 |
Synthesis of reduced graphene oxide/vanadium pentoxide composite for aqueous Na-ion capacitor |
| 초록 |
Reduced graphene oxide-vanadium pentoxide (RGO-V2O5) composite has been synthesized for Na-ion capacitor. The RGO-V2O5 has been prepared by a facile hydrothermal method. The X-ray diffraction (XRD) analysis confirms the formation of V2O5 and reduction of graphene oxide. Field emission scanning electron microscope (FE-SEM) image reveals that the spherical shaped V2O5 are decorated on RGO surface. The electrochemical characteristics of the RGO-V2O5 composite have been investigated by cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) analysis. A quasi-rectangular CV with a redox hump at around 0.61 (anodic) and 0.42 V (cathodic) is observed in the working potential of 0-0.9 V using 1 M Na2SO4 electrolyte. The RGO-V2O5 exhibits a specific capacitance of 300 F g-1 at current density of 1 Ag-1. |
| 저자 |
Milan Jana, 박재민, 신강호, 박호석
|
| 소속 |
성균관대 |
| 키워드 |
Supercapacitor; Aqueous electrolyte; Specific capacitance
|
| E-Mail |
|
