| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Water-based preperation of graphene/polyaniline composite and their characteristics |
| 초록 |
A new and facile modification method to endow graphene with a water-dispersibility was provided in this study. The remnant epoxide group on the graphene prepared by thermal reduction of graphite oxide and the amine group of potassium 6-aminocaproate reacted effectively by a simple heating process at solid state of the mixture mixed in a solvent and dried. The modified graphene with negatively charged carboxylate moiety dispersed easily and stably in water. The graphene/polyaniline (PANI) composite was prepared in aqueous system by a simple physical mixing of aqueous dispersions of negatively charged graphene and positively charged micron-size PANI particles, followed by drying. The composites mostly exhibited higher energy storage capacities as a supercapacitor electrode compared to those of graphene or PANI themselves. The synergistic effect was most evident at graphene/PANI weight ratio of 20/80. It exhibited more than two-fold of the specific capacitances of PANI or graphene. |
| 저자 |
간수크1, 이태민2, 다오1, 보옥황1, 김병수2, 정한모1
|
| 소속 |
1울산대, 2UNIST |
| 키워드 |
Graphene; Polyaniline; Water dispersible graphene
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| E-Mail |
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