| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 |
16권 2호, p.1815 |
| 발표분야 |
에너지 |
| 제목 |
Synthesis of single-crystalline α-MnO2 Nanotubes as electrode material for Supercapacitors |
| 초록 |
MnO2 nanotubes with nanopore dimension were prepared by using Hydrothermal method. The as-prepared MnO2 NTs were characterized by X-ray diffractometer (XRD), Field-emission scanning electron microscopy (FE-SEM), Energy dispersive x-ray spectroscopy (EDAX) and Fourier Transform InfraRed (FTIR) transmittance spectra. Morphological analysis by FE-SEM showed nanopore sized tubes with an average aspect ratio of 75 nm. Structural analysis by XRD showed body-centered tetragonal α-MnO2. From EDAX spectra, the estimated value of atomic ratio of Mn to O was 67.38 to 32.62. FTIR spectra showed a strong band at 704 cm-1, which revealed Mn O stretching vibrations of α-MnO2. The composite of MnO2 (55 wt.%), MWCNT (35 wt.%) and PVDF-HFP binder (10 wt.%) was prepared and then casted onto Ni foam current collector for 1×1 cm2 area. The electrochemical analysis such as cyclic voltammetry, impedance spectroscopy and charging-discharging were performed in 6M KOH for supercapacitor application. |
| 저자 |
D. Soundararajan, 김용주, 고장면
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| 소속 |
한밭대 |
| 키워드 |
MnO2 nanotubes; supercapacitor
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| E-Mail |
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| 원문파일 |
초록 보기 |
