화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터)
권호 43권 1호
발표분야 기능성 고분자
제목 Electrochemical Property of Hybrid Carbon Nanofibers Fabricated from Polyimide Precursor and Manganese Dioxide Precursor via Co-electrospinning, Calcination and Carbonization
초록 Electrochemical supercapacitors have received great interest as a promising energy storage device, due to their high power density, fast charge/discharge time, and long cyclability. To attain high performance supercapacitor electrodes, we fabricated hybrid carbon nanofibers from polyimide and MnO2 precursors via co-electrospinning, calcination and carbonization process, and investigated their microstructures and electrochemical properties. For the purpose, poly(amic acid) (PAA) as the polyimide precursor was synthesized from 3,3-dihydroxybenzidine and pyromellitic dianhydride. Manganese acetate/poly(vinyl pyrrolidone) (PVP) solution was prepared for the precursor of MnO2 nanofiber. Each PAA and manganese acetate/PVP solution was electrospun simultaneously into nanofibers, which were then calcinated and carbonized to obtain final hybrid carbon nanofibers. The electrochemical performance of the hybrid carbon nanofibers was investigated by considering microstructural features.
저자 한남구, 정영규
소속 충남대
키워드 Carbon nanofiber; Polyimide; Manganese dioxide; Co-electrospinning; Carbonization; Microstructure; Electrochemical property
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