Ion Transfer Across Fuel Cell Membranes Chaffin Ross Whitefish High School Independent Study.
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Transcript of Ion Transfer Across Fuel Cell Membranes Chaffin Ross Whitefish High School Independent Study.
![Page 1: Ion Transfer Across Fuel Cell Membranes Chaffin Ross Whitefish High School Independent Study.](https://reader036.fdocuments.us/reader036/viewer/2022062806/5697bfd41a28abf838cac806/html5/thumbnails/1.jpg)
Ion Transfer Across Fuel Cell MembranesChaffin RossWhitefish High SchoolIndependent Study
![Page 2: Ion Transfer Across Fuel Cell Membranes Chaffin Ross Whitefish High School Independent Study.](https://reader036.fdocuments.us/reader036/viewer/2022062806/5697bfd41a28abf838cac806/html5/thumbnails/2.jpg)
Interest
● Earth Science Energy Unit
● Chemistry
● Space Station
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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?
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Proton Exchange Membrane
● Chemical Energy = Electrical Energy
● H2 2H+ + 2e-
● Protons permeate through
● Electrons travel along load circuit
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Question/ Hypothesis
● How does temperature affect the ion transfer across fuel cell membranes?
● Lower at 32-40 degrees
● Higher at temperatures 90-95 degrees
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Procedure
● Independent Variable: Temperature
● Dependent Variable: Ion Transfer (Conductance in µS/cm)
● Controls: Membrane, Solutions
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Ion Size
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Data: Trial 1 (0.5 M NaCl)
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Data: Trial 2 (0.5 M NaCl)
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Data: Trial 3 (1 M NaCl)
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Data: Trial 4 (0.5 M KCL)
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Data: Trial 5 (1 M KCL)
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Data: Trial 6 (0.5 M ZnCl2)
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Data: Trial 7 (1 M ZnCl2)
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Implications
● High Temperature Usage
● Low Temperature Usage
● Membrane Durability
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Improvements
● Steady/same temperature
● Use different membranes
● Different Solutions
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Acknowledgements
● Paula Kosted
● Derek Tarrant
● ViZn Energy
● Todd Spangler
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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.