Abstract
Para amino benzoic acid is used in the synthesis of folic acid by bacteria. It is biologically important for the survival of bacteria in the human intestinal tract. This biological and physiologically important molecule can be used to achieve immobilization of glucose oxidase on nanomaterial modified electrodes. This work focuses on the grafting of pABA on graphene oxide modified carbon fabric electrode. The immobilized enzymes have been used to generate electrons from glucose through direct electron transfer at a potential of -490 mV. Electrochemically deposited reduced graphene oxide was used as the cathode with an oxygen reduction potential of -200mV. The anode and the cathode were inserted into a 3D printed electrode holder with an inter electrode distance of 50mm and an OCV of 107mV was obtained. The compact design of the fuel cell combined with it’ s eco-friendly nature makes this an ideal construction for use as a biolfuel cell.
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