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Development of Supercapacitors Using Porous Carbon Materials Synthesized from Plant Derived Precursors

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2008, 9(3), pp.188-189
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General

Vilas Khairnar 1 Sandesh Jaybhaye 1 Chi- Chang Hu 2 Rakesh Afre 3 Tetsu Soga 4 Madhuri Sharon 5 Maheshwar Sharon 1

1Birla College
2National Chung Chen University
3Nagoya Institute Technology
4Nagoya Institute of Technology
5Monad Nanotech Private Ltd.

Candidate

ABSTRACT

Porous carbon materials synthesized from various plant derived precursors i.e. seeds of [Castor (Ricinus communis), Soap nut ( Sapindus sp.), Cashew-nut (Semecarpus anacardium), Jack fruit (Artocarpus heterophyllus), Safflower (Carthamus tinctorius), Ambadi (Crotolaria juncea), Neem (Azadirachta indica), Bitter Almond (Prunus amygdalus), Sesamum (Sisamum indicum), Date-palm (Phoenix dactylifera),Canola (Brassica napus), Sunflower (Helianthus annulus)] and fibrous materials from [Corn stem- (Zea mays) , Rice straw (Oryza sativa), Bamboo (Bombax bambusa) and Coconut fibers (Cocos nucifera)] were screened to make supercapacitor in 5M KOH solution. Carbon material obtained from Jack fruit seeds (92.0 F/g), Rice straw (83.0 F/g), Soap nut seeds (54.0 F/g), Castor seeds (44.34 F/g) and Bamboo (40.0 F/g) gave high capacitance value as compared to others. The magnitude of capacitance value was found to be inversely proportional to the scan rate of measurement. It is suggested that carbon material should possess large surface area and small pore size to get better value of capacitor. Moreover, the structure of carbon materials should be such that majority of pores are in the plane parallel to the plane of electrode and surface is fluffy like cotton ball.

Citation status

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