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

Date
2005
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract

An 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.

Description
Degree
Master of Science
Type
Thesis
Keywords
Environmental science, Environmental engineering, Energy
Citation

Tsui, Eliza M.. "Development of novel membrane for proton exchange membrane fuel cell using nanostructured ferroxanes." (2005) Master’s Thesis, Rice University. https://hdl.handle.net/1911/17836.

Has part(s)
Forms part of
Published Version
Rights
Copyright 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.
Link to license
Citable link to this page