Electrocatalytic Reduction of Oxygen at Poly(o-phenylenediamine) and Poly(3,4- ethylenedioxythiophene) at a Carbon Nanotube Modified Glassy Carbon Electrodes

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dc.contributor.advisorAdmassie Shimelis (PhD)
dc.contributor.authorAbate Alemwork
dc.date.accessioned2018-06-13T09:09:07Z
dc.date.accessioned2023-11-09T16:19:38Z
dc.date.available2018-06-13T09:09:07Z
dc.date.available2023-11-09T16:19:38Z
dc.date.issued2010-06
dc.description.abstractElectrochemical behaviour and electrocatalytic reduction of oxygen has been studied at PoPDA, and PEDOT mutiwall carbon nano-tube (MWCNT) composite film modified glassy carbon electrode. Cyclic and rotating disk voltammetric techniques were used to investigate the electrocatalytic activity of MWCNT composite film electrodes for oxygen reduction reaction (ORR). Glassy carbon electrodes modified with multiwall carbon nanotube by casting functionalized carbon nanotube was electropolymerized by using oPDA and EDOT. Koutecky-levich analysis at rotating disk electrode made possible to evaluate the kinetic parameters; total number of exchanged electron, limiting current, Tafel slope and exchange current density. Composites of PoPDA multi-wall carbon nanotube shows enhanced electrocatalytic activity for oxygen reduction reaction but the composite of PEDOT does not show electrocatalytic activity for oxygen reduction reaction. Keywods: ORR, MWCNT, Electrocatalysis, Electropolymerization, Overpotential, Tafel slope, exchange current density.en_US
dc.identifier.urihttp://etd.aau.edu.et/handle/12345678/674
dc.language.isoenen_US
dc.publisherAddis Ababa Universtyen_US
dc.subjectORR, MWCNT; Electrocatalysis; Electropolymerization; Overpotential; Tafel Slope; exchange current density.en_US
dc.titleElectrocatalytic Reduction of Oxygen at Poly(o-phenylenediamine) and Poly(3,4- ethylenedioxythiophene) at a Carbon Nanotube Modified Glassy Carbon Electrodesen_US
dc.typeThesisen_US

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