Development of novel membrane for proton exchange membrane fuel cell using nanostructured ferroxanes

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dc.contributor.advisorWiesner, Mark R.en_US
dc.creatorTsui, Eliza M.en_US
dc.date.accessioned2009-06-04T08:47:04Zen_US
dc.date.available2009-06-04T08:47:04Zen_US
dc.date.issued2005en_US
dc.description.abstractAn iron-based ceramic material is shown to have excellent properties as an electrolyte material for proton exchange membrane in fuel cells. These membranes have comparable conductivity to the NafionRTM membrane with the advantages of lower material costs, and the ability to operate at higher temperatures. Iron oxide nanoparticles (ferroxane) were prepared as precursor materials for membrane fabrication. The structure of ferroxane-derived ceramics was characterized with FTIR, SEM, TEM, and nitrogen adsorption-desorption. Protonic conductivity of the membranes was studied by electrochemical impedance spectroscopy (EIS) to determine their feasibility in fuel cell applications. The conductivity improved as relative humidity increased. Conductivities of sintered samples were significantly higher than those of green bodies. However, sintered samples were less dependent on relative humidity, which would make their performance more reliable than other ceramic materials and Nafion. The protonic conductivity of ferroxane derived ceramics fired at 300°C (ranged from 2.31 to 2.65 x 10-2 S/cm at relative humidities of 58% to 100%). The values are comparable to the conductivities of Nafion membranes.en_US
dc.format.extent130 p.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.callnoTHESIS C.E. 2005 TSUIen_US
dc.identifier.citationTsui, Eliza M.. "Development of novel membrane for proton exchange membrane fuel cell using nanostructured ferroxanes." (2005) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17836">https://hdl.handle.net/1911/17836</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/17836en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectEnvironmental scienceen_US
dc.subjectEnvironmental engineeringen_US
dc.subjectEnergyen_US
dc.titleDevelopment of novel membrane for proton exchange membrane fuel cell using nanostructured ferroxanesen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentChemical and Biomolecular Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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