콘텐츠 본문
논문 해외 국제전문학술지(SCI급) SUPERCAPACITIVE PROPERTIES OF COMPOSITE ELECTRODES CONSISTING OF ACTIVATED CARBON AND 1,4-DIHYDROXYNAPHTHALENE DERIVATIVES
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-07
- 저자명 박정호
- 학술지명 SYNTHETIC METALS
- 발행처명 ELSEVIER SCIENCE SA
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 9
논문 초록 (Abstract)
Two 1,4-dihydoxynaphthalene (PhQH(2))-based derivatives (coded as HBU-551 and HBU-552) are synthesized by reacting with different a mines (i.e., tryptamine and phenethylamine, respectively) to use as org anic additives of activated carbon supercapacitors. The composite elec trodes with HBU-551 and HBU-552 are also prepared by blending with the r atio of 70:25 w/w, and their supercapacitive properties are investigat ed in terms of redox behaviors and specific capacitance evolutions agai nst scan rateand cycle life. The organic additives and their composi tes with activated carbon are dominantly characterized by PhQ-PhQH(2) redox transition accompanying a two-electron two-proton process, and we akly affected by reversible redox reaction of nitrogen in the -NH grou p, which involves an additional one-electron one-proton process. Thu s, the composite electrodes show higher specific capacitance over 210 F g(-1) due to the synergistic effect between activated carbon (pseudocapacitance)and organic additives (redox behav ior). Cycle performance and high-rate capability can also be enhan ced by the adoption of PhQH(2)-based organic additives for their pore-filling morphology to increase the packing density of composi te electrodes. (C) 2016 Elsevier B.V. All rights reserved.
