Influence of diffusion layer ink preparation techniques on the microstructure and performance of cathode in proton exchange membrane fuel cell
Publish place: Second National Conference on Hydrogen and Fuel Cells
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
H2FC02_054
تاریخ نمایه سازی: 27 شهریور 1391
Abstract:
In this study, effects of cathode gas diffusion layer inks preparation procedures on the performance of small scale Proton exchange membrane fuel cell (PEMFC) have been investigated. An aspect that has not been reported in detail elsewhere. Properties of diffusion layers have been studied by Physical and electrochemical techniques. Homogeneity of the inks supplied following three methods based on ultrasonic waves: pulse ultrasonic, continues ultrasonic and bath ultrasonic technique. MEAs showed dominant different performances at three regions of polarization especially in mass transport activity due to various permeability caused by variety of particle size distributions. Results showed that bath ultrasonic treatment is an effective procedure which achieves more ink homogeneity and consequently cell performance improvement
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Authors
M. Zhiani
Assistant Professor, Department of Chemistry, Isfahan University of Technology,
S. Kamali
M.S students, Department of Chemistry, Isfahan University of Technology,
N. Toluee dourbash
M.S students, Department of Chemistry, Isfahan University of Technology
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