Electrocatalytic Reduction Of Oxygen At Poly(o-phenylenediamine) And Poly(34- Ethylenedioxythiophene) At A Carbon Nanotube Modified Glassy Carbon Electrodes
Chemistry Project Topics
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Electrochemical behaviour and electrocatalytic reduction of oxygen has been studied atrnPoPDA, and PEDOT mutiwall carbon nano-tube (MWCNT) composite film modified glassyrncarbon electrode. Cyclic and rotating disk voltammetric techniques were used to investigaternthe electrocatalytic activity of MWCNT composite film electrodes for oxygen reductionrnreaction (ORR). Glassy carbon electrodes modified with multiwall carbon nanotube byrncasting functionalized carbon nanotube was electropolymerized by using oPDA and EDOT.rnKoutecky-levich analysis at rotating disk electrode made possible to evaluate the kineticrnparameters; total number of exchanged electron, limiting current, Tafel slope and exchangerncurrent density. Composites of PoPDA multi-wall carbon nanotube shows enhancedrnelectrocatalytic activity for oxygen reduction reaction but the composite of PEDOT does notrnshow electrocatalytic activity for oxygen reduction reaction.rnKeywods: ORR, MWCNT, Electrocatalysis, Electropolymerization, Overpotential, Tafelrnslope, exchange current density.
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