습식 부직포 공정을 활용한 MWCNT/ACF Web 전극의 제조 및 특성 


56권  6호, pp. 342-349, 12월  2019
10.12772/TSE.2019.56.342


PDF
  요약

Carbon materials are among the most critical to energy storage in the world. Multi-walled carbon nanotube(MWCNT), in particular, have been used extensively in electronic devices owing to their aspect ratio, strength, and electrical properties. Recently, activated carbon fiber(ACF) have attracted attention as an electrode material because of their large surface area. Therefore, this study utilized MWCNTs and ACFs to fabricate an electrode via the wet-laid process. The MWCNT and MWCNT/ACF web electrode surface were observed using a field emission scanning electron microscope(FE-SEM). Raman spectroscopy was utilized to determine that the carbon materials had no significant defects. The electro-conductivity of each carbon material and web electrode was measured via the four-probe method, and the electro-conductivity of MWCNT/ACF web electrode was observed to lie between those of the MWCNT and ACF. Cyclic voltammetry tended to pseudo capacitor behavior, and maximum discharge time was determined to be 156.9 s using the galvanic charge and discharge test. The maximum specific capacitance of the MWCNT/ACF electrode was 55.3 F/g. The result of electrochemical test indicated that the composite carbon material displayed a synergistic effect that improved the specific capacitance.

  통계
2022년 11월부터 누적 집계
동일한 세션일 때 여러 번 접속해도 한 번만 카운트됩니다. 그래프 위에 마우스를 올리면 자세한 수치를 확인하실 수 있습니다.