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Simon Fraser University

1. Chen, Yixuan. 4D in situ visualization of chemo-mechanical membrane degradation in fuel cells: Understanding and mitigating edge failures.

Degree: 2020, Simon Fraser University

Fuel cell is a zero-emission energy conversion device using hydrogen and oxygen to generate power with water as the only by-product. Membrane electrode assembly (MEA) edges are sensitive regions that could influence the overall durability of fuel cells, where membrane degradation at poorly designed edges may lead to premature cell failures. In this work, two MEA edge designs were implemented to study their robustness during combined chemical and mechanical accelerated stress testing. Four-dimensional in situ visualization, enabled by X-ray computed tomography, was performed to understand and mitigate the edge failure issue. Interaction of adhesive-containing polyimide gasket with catalyst coated membrane (CCM) was identified as the key contributor to premature edge failures, which was mitigated by using a non-adhesive inert frame at the CCM interface, thus enabling a robust MEA edge wherein the failures were shifted into the active area. Overall, findings of this research may contribute to robust fuel cell manufacturing and enhanced membrane durability.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Chen, Y. (2020). 4D in situ visualization of chemo-mechanical membrane degradation in fuel cells: Understanding and mitigating edge failures. (Thesis). Simon Fraser University. Retrieved from http://summit.sfu.ca/item/20595

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Chen, Yixuan. “4D in situ visualization of chemo-mechanical membrane degradation in fuel cells: Understanding and mitigating edge failures.” 2020. Thesis, Simon Fraser University. Accessed September 25, 2020. http://summit.sfu.ca/item/20595.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Chen, Yixuan. “4D in situ visualization of chemo-mechanical membrane degradation in fuel cells: Understanding and mitigating edge failures.” 2020. Web. 25 Sep 2020.

Vancouver:

Chen Y. 4D in situ visualization of chemo-mechanical membrane degradation in fuel cells: Understanding and mitigating edge failures. [Internet] [Thesis]. Simon Fraser University; 2020. [cited 2020 Sep 25]. Available from: http://summit.sfu.ca/item/20595.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen Y. 4D in situ visualization of chemo-mechanical membrane degradation in fuel cells: Understanding and mitigating edge failures. [Thesis]. Simon Fraser University; 2020. Available from: http://summit.sfu.ca/item/20595

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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