Revealing the Internal Architecture of Alkaline Fuel Cell Membranes with Cryo-4D-STEM and Cryo-STEM-EELS
- Cornell Univ., Ithaca, NY (United States)
- Carnegie Mellon Univ., Pittsburgh, PA (United States)
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Characterization of the internal architecture of polymer materials plays an important role in the development of energy devices such as fuel cells. The beam sensitivity of polymer materials coupled with their inherent low contrast makes imaging using conventional TEM and STEM techniques a challenge. Here, we demonstrate robust mapping of the internal architecture of fuel cell polymer membranes using cryo-4D-STEM and cryo-STEM-EELS. Here, we will focus on characterization of alkaline anion exchange membranes (AAEMs) used in AAEM fuel cells, a cheaper alternative to current fuel cell technologies as they allow for platinum group metal-free catalysts. In fuel cell polymer membranes, the internal architecture is critical in performance metrics such as conductivity, mechanical durability, and chemical stability.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC36-08GO28308
- OSTI ID:
- 2000015
- Report Number(s):
- NREL/JA-5900-87464; MainId:88239; UUID:11fc6934-f4d6-4f1a-b19a-9cf071804806; MainAdminID:70579
- Journal Information:
- Microscopy and Microanalysis, Vol. 29, Issue Supplement_1; ISSN 1431-9276
- Publisher:
- Microscopy Society of America (MSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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