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학술지 Supercapacitive Properties of Electrodeposited RuO2 Electrode in Acrylic Gel Polymer Electrolytes
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저자
김광만, 남지현, 이영기, 조원일, 고장면
발행일
201310
출처
Current Applied Physics, v.13 no.8, pp.1702-1706
ISSN
1567-1739
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.cap.2013.06.016
협약과제
12SB1100, 통합형 플랙서블 필름 전지 시스템 개발, 김광만
초록
Hydrous ruthenium oxide (RuO2) is prepared by electrodeposition on a platinum substrate and its supercapacitive properties are characterized adopting acrylic gel polymer electrolytes, such as poly(acrylic acid) (PAA), potassium polyacrylate (PAAK), and poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAMPS). The electrodeposited hydrous RuO2 exhibits an amorphous compact stratified morphology with a higher loading (0.15 mg cm -2) than that of a previous report, and shows broad redox peaks on both cathodic and anodic scans in the cyclic voltammetry. In particular, the RuO2 electrode for supercapacitor adopting the PAMPS electrolyte shows the highest specific capacitance of 642 F g-1 at 20 mV s -1. This is due to the efficient utilization of active RuO 2 species and greater proton accommodation toward the negative oxygen sites of PAMPS's side chain. In addition, it is possible to improve sustainability against high-rate current with the RuO2 electrode with the PAMPS electrolyte, due to the crosslinks of the gel electrolyte, which support the mechanical strength. © 2013 Elsevier B.V. All rights reserved.
키워드
Acrylic gel polymer electrolyte, Cyclic voltammetry, Ruthenium oxide, Supercapacitor
KSP 제안 키워드
2-acrylamido-2-methyl-1-propanesulfonic acid(Poly), Cyclic voltammetry, Efficient Utilization, Gel polymer electrolyte, High rate, Hydrous ruthenium oxide, Mechanical Strength, Platinum substrate, Poly(acrylic acid)(PAAc), RuO 2, Specific capacitance