Electrooxidation of carbon monoxide and formic acid on polycrystalline palladium

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dc.contributor.authorSacci, Robert Lee
dc.contributor.supervisorHarrington, David A.
dc.date.accessioned2012-05-01T15:21:44Z
dc.date.available2012-05-01T15:21:44Z
dc.date.copyright2012en_US
dc.date.issued2012-05-01
dc.degree.departmentDepartment of Chemistry
dc.degree.levelDoctor of Philosophy Ph.D.en_US
dc.description.abstractA systematic study of formic acid electrooxidation on polycrystalline palladium is presented. The study begins with a discussion on the oxide growth process on platinum and palladium. CO electrooxidation under controlled mass transport is studied in order to elucidate the manner in which Pd interacts with CO, a proposed poisoning species in formic acid oxidation. The mechanism of formic acid oxidation is studied using various potentiodynamic techniques, including dynamic electrochemical impedance spectroscopy, which provides impedance measurements during a voltammogram. Through kinetic analysis, a model for the oxidation was developed. The impedance measurements support both the dc measurements as well as the results of the oxidation model. It was determined that CO formation was slow on Pd within the time scale of the experiments. The chief cause of surface deactivate was then determined to be the Pd surface interaction with the (bi)sulfate adsorption in the double layer region.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/3964
dc.language.isoenen_US
dc.rights.tempAvailable to the World Wide Weben_US
dc.subjectCarbon monoxideen_US
dc.subjectformic aciden_US
dc.subjectfuel cellsen_US
dc.subjectimpedanceen_US
dc.subjectElectrochemistryen_US
dc.subjectOxidationen_US
dc.subjectKineticsen_US
dc.titleElectrooxidation of carbon monoxide and formic acid on polycrystalline palladiumen_US
dc.typeThesisen_US

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