| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
고분자 나노복합체 기반 에너지 하베스팅/저장 기술 |
| 제목 |
Double hydrophilic block copolymer based hybrid nanomaterials in energy storage devices |
| 초록 |
The facile synthetic approach of ruthenium oxide nanoparticles using double hydrophilic block copolymers (DHBCs) and their application toward the supercapacitor are presented. Nanostructured hydrous ruthenium oxide (RuO2) nanoparticles are synthesized using double hydrophilic block copolymer of poly(ethylene oxide)-block-poly(acrylic acid) (PEO-b-PAA) as a template, forming a micelle upon addition of the ruthenium precursor, which then transformed into RuO2 nanoparticles of controlled dimension with reducing agents. Through annealing, we found that the crystallinity of RuO2 nanoparticles increases considerably with a simultaneous transformation of the surrounding double hydrophilic block copolymer into ionic and electronic conducting buffer layer atop RuO2 nanoparticles, which contribute to the significant enhancement of the overall specific capacitance to 962 F/g at 10 mV/s with a superior retention of capacitance over 1000 cycles at very high charge/discharge rate at 20 A/g. |
| 저자 |
김병수 |
| 소속 |
울산과학기술대 |
| 키워드 |
Block copolymer; nanoparticles; hybrid materials; supercapacitors
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| E-Mail |
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