ion transfer across fuel cell membranes
Post on 02-Jan-2016
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Background
● What is a hydrogen fuel cell?
● How does a fuel cell work?
● What is the membranes function in a fuel cell?
Proton Exchange Membrane
● Chemical Energy = Electrical Energy
● H2 2H+ + 2e-
● Protons permeate through
● Electrons travel along load circuit
Question/ Hypothesis
● How does temperature affect the ion transfer across fuel cell membranes?
● Lower at 32-40 degrees
● Higher at temperatures 90-95 degrees
Procedure
● Independent Variable: Temperature
● Dependent Variable: Ion Transfer (Conductance in µS/cm)
● Controls: Membrane, Solutions
Resources● Son, D. N., and H. Kasai. "Proton Transport through Aqueous Nafion Membrane." The
European Physical Journal E 29.4 (2009): 351-61. Print.
● Liu, Wen, Kathy Ruth, and Greg Rusch. "Membrane Durability in PEM Fuel Cells." Journal of New Materials for Materials for Electrochemical Systems 4 (n.d.): n. pag. Print.
● Faulk, Michael. "An Infrared Study of Water in Perfluorosulfonate (Nafion) Membranes."Atlantic Regional Laboratory. N.p.: n.p., 1974. 1495-501. Print.
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