한국재료학회지 제32권 제9호 (p.369-378)

폐 플로랄 폼을 이용한 슈퍼커패시터용 다공성 탄소 폼 제조 및 전기화학 성능 평가

Preparation and Electrochemical Characterization of Porous Carbon Foam from Waste Floral Foam for Supercapacitors
키워드 :
waste floral foam,carbon foam,carbonization,supercapacitor,electrode.

목차

Abstract
1. 서 론
2. 실험 및 분석 방법
3. 결과 및 고찰
4. 결 론
Acknowledgement
References

초록

The recycling of solid waste materials to fabricate carbon-based electrode materials is of great interest for low-cost green supercapacitors. In this study, porous carbon foam (PCF) was prepared from waste floral foam (WFF) as an electrode material for supercapacitors. WFF was directly carbonized at various temperatures of 600, 800, and 1,000 oC under an inert atmosphere. The WFF-derived PCF (C-WFF) was found to have a specific surface area of 458.99 m2/g with multi-modal pore structures. The supercapacitive behavior of the prepared C-WFF was evaluated using a three-electrode system in a 6 M KOH aqueous electrolyte. As a result, the prepared C-WFF as an active material showed a high specific capacitance of 206 F/g at 1 A/g, a rate capability of 36.4 % at 20 A/g, a specific power density of 2,500 W/kg at an energy density of 2.68 Wh/kg, and a cycle stability of 99.96 % at 20 A/g after 10,000 cycles. These results indicate that the C-WFF prepared from WFF could be a promising candidate as an electrode material for high-performance green supercapacitors.