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A rejuvenation process to enhance the durability of low Pt loaded polymer electrolyte membrane fuel cells
- Source :
- Journal of Power Sources. 396:345-354
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- An effective method to enhance the durability of polymer electrolyte membrane fuel cells (PEMFCs) is reported. PEMFC performance loss is mitigated by exposing the electrodes of fuel cells to dry nitrogen gas periodically at high temperature. This method extends the lifetime of fuel cells significantly compared to their non-treated counterparts. The impact of treatment temperature and exposure time on PEMFC durability is reported, using potential cycling accelerated stress tests. The enhanced durability is attributed to the suppression of “ionomer relaxation” that occurs under the nearly water saturated operating conditions of a PEMFC cathode.
- Subjects :
- chemistry.chemical_classification
Materials science
Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Proton exchange membrane fuel cell
02 engineering and technology
Electrolyte
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Durability
Cathode
0104 chemical sciences
law.invention
chemistry.chemical_compound
Membrane
chemistry
Chemical engineering
law
Electrode
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
0210 nano-technology
Ionomer
Subjects
Details
- ISSN :
- 03787753
- Volume :
- 396
- Database :
- OpenAIRE
- Journal :
- Journal of Power Sources
- Accession number :
- edsair.doi...........c40678820ef978d8231598d875c9da3d