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Title page for etd-0819105-175346


URN etd-0819105-175346 Statistics This thesis had been viewed 2661 times. Download 22 times.
Author Shr-jiun Ju
Author's Email Address No Public.
Department Materials Engineering
Year 2004 Semester 2
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 73
Title Study on the MnO2 Nanoparticles/Carbon
Black for Supercapacitor Electrodes
Keyword
  • supercapacitor
  • manganese oxide.sol-gel
  • manganese oxide.sol-gel
  • supercapacitor
  • Abstract The manganese dioxide is applicable to the research and the application of the extremely high capacitor because of having to draw up the electric capacity characteristic goodly. The experiment uses sol-gel method with the potassium manganate and fumaric acid to have manganese dioxide Nano particle to also mix with the carbon black manufacture the compound electrode. First to make to have the powder to carry on the hot analysis with the DTA- TGA, then make use of the XRD to study it constitutes and particle size, and observe the surface of the powder with the SEM. Using the EPR gets the paramagnetic resonance spectrum of the electron free radicals of manganese oxide crystal or the paramagnetic material, to study its chemical bonding. And manufacture of compound electrode to change the different parameter( the mixing ratio of manganese oxide/carbon black, scan rate, electrode base material, hot processing temperature and various dopen) and carry on the CV testing to study its electrochemical characteristics. The manganese oxide after heating 100℃ mixes with 25wt.% carbon black , stainless steel net as electrode base material, having the maximum specific capacitance of 158.39 F/g at a scan rate of 5mV/s in 0.1M Na2SO4 .
    Advisor Committee
  • Yi Hu - advisor
  • Shyan-kay Jou - co-chair
  • Tai-i Wu - co-chair
  • Wu Kai - co-chair
  • Files indicate in-campus access at one year and off-campus not accessible
    Date of Defense 2005-06-22 Date of Submission 2005-08-19


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