| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션) |
| 권호 |
20권 1호 |
| 발표분야 |
정밀화학_포스터 |
| 제목 |
Nanotexture studies of polymeric precursor-based activated hard carbons: II. Transmission electron microscopy, Raman spectroscopy, and high-performance supercapacitors |
| 초록 |
In this study, nanoporous development and structure of activated polymer-based hard carbons using CO2 activation (APHCs) was observed by TEM and Raman spectroscopy. It was observed that the nanopores of APHCs were consisted of slit-shaped pores (SPs) and little cylindrical pores (CPs). It is well-known fact that the SPs should be formed in the APHCs in order to show high SSA. In addition, the electrochemical properties of the APHCs as electrodes for a supercapacitor are studied by a cyclic voltammetry (10~200 mV/s), galvanostatic chare-discharge, electrochemical impedance spectroscopy (100 mHz~300 kHz), and cycle life measurements in 6 M KOH electrolyte. The supercapacitor electrode exhibits exceptional specific capacitances of 95.64 F/g (55.11 F/cc) at current 2 mA and 95.2% after 100 cycles at 2 mA. These values are proven to be high when the capacitances are compared between the SPs and CPs. |
| 저자 |
백진, 김병주
|
| 소속 |
한국탄소융합기술원 |
| 키워드 |
nanotexture; hard carbon; TEM; Raman spectroscopy; supercapacitor
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| E-Mail |
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