Electrooxidation of carbon monoxide and formic acid on polycrystalline palladium

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dc.contributor.author Sacci, Robert Lee
dc.date.accessioned 2012-05-01T15:21:44Z
dc.date.available 2012-05-01T15:21:44Z
dc.date.copyright 2012 en_US
dc.date.issued 2012-05-01
dc.identifier.uri http://hdl.handle.net/1828/3964
dc.description.abstract A 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.language.iso en en_US
dc.subject Carbon monoxide en_US
dc.subject formic acid en_US
dc.subject fuel cells en_US
dc.subject impedance en_US
dc.subject Electrochemistry en_US
dc.subject Oxidation en_US
dc.subject Kinetics en_US
dc.title Electrooxidation of carbon monoxide and formic acid on polycrystalline palladium en_US
dc.type Thesis en_US
dc.contributor.supervisor Harrington, David A.
dc.degree.department Dept. of Chemistry en_US
dc.degree.level Doctor of Philosophy Ph.D. en_US
dc.rights.temp Available to the World Wide Web en_US
dc.description.scholarlevel Graduate en_US

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