C.I. Pigment blue 15:3 기반 활성탄의 전기이중층커패시터 전극재로의 적용

초록

This study investigated the potential of C.I. Pigment Blue 15:3, a copper phthalocyanine-based organic pigment as a carbon precursor for electric double layer capacitor (EDLC) electrode materials. Activated carbon(AC) was prepared by mixing with ZnCl2 and heat-treating the mixture at various temperatures (500, 600, 700, and 800 oC). The crystalline structure of AC was more developed, as the heat-treatment temperature increased. There was no significant difference in specific surface area of the prepared ACs, whereas their pore size distributions exhibited significant difference. The AC prepared at 700 oC has the largest micropore volume with the second highest crystallized structure whereas the AC prepared at 800 oC has the largest mesopore volume with the most crystallized structure. The AC prepared at 700 oC and 800 oC exhibited excellent specific capacitance with 31.3 F/g and 27.2 F/g at 0.1 A/g, respectively, outperforming 26.8 F/g of the commercial EDLC electrode material Norit-carbon. These findings confirm the feasibility of using C.I. Pigment Blue 15:3-based activated carbons as electrode materials for EDLCs.

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