Worcester Polytechnic Institute Electronic Theses and Dissertations Collection

Title page for ETD etd-121913-200346


Document Typethesis
Author NameSuarez, Matthew
Email Address msuarez at wpi.edu
URNetd-121913-200346
TitleThe Effect of Membrane Thickness on the Performance of PBI-Based High-Temperature Direct Methanol Fuel Cells
DegreeMS
DepartmentChemical Engineering
Advisors
  • Ravindra Datta, Advisor
  • Keywords
  • DMFC
  • PBI
  • membrane thickness
  • Date of Presentation/Defense2013-12-20
    Availability restricted

    Abstract

    This project investigates the effect of membrane thickness on the performance and durability of a Direct Methanol Fuel Cell (DMFC) using a commercially available Celtec«P-1000 PBI-based membrane electrode assembly (MEA). The PBI-based membranes tested were the 100Ám, the standard thickness, 200Ám and 250Ám thick. With various methanol feed concentrations and cathode feeds, oxygen and air, the PBI-based MEAs were operated between 160 and 180░C with vaporized methanol feed. Results showed that the DMFC performance increased with temperature and with PBI membrane thickness. The optimal concentration for the 100Ám membrane was at 5M while the best performance with the 200Ám membrane was obtained at 3M. The 250Ám membrane looked like it could have had better performance than the 200Ám, but unfortunately experimental issues didnĺt allow completion of these results.

    Files
  • (WPI)msuarez.pdf

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