Published Paper Details:

In the present research work to find out the best experimental condition to get high specific capacitance, the Taguchi method was used which involves reducing the variation in a process through robust design of experiments. The overall objective of the method is to produce high product result in minimum steps. From capacitance studies done by cyclic voltammetry technique for carbon materials obtained from plant precursors like bamboo fiber, rice straw and sugarcane bagasse; shows that highest specific capacitance is obtained with carbon obtained from rice straw. Taguchi optimization methodology predicted that pyrolysis of rice straw at 800oC temperature for 2 hrs. duration and treatment of carbon with 50 % KOH solution gives the carbon of best quality for maximum capacitance and thereby for developing supercapacitor. It is also observed that, first major impactful parameter on the specific capacitance is the nature of the precursor and second is treatment with KOH; pyrolyzing time and temperature had very little impact.