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Influence of Ammonia on Membrane-electrode Assemblies in Polymer Electrolyte Fuel Cells by Xiaoyu Zhang; Ugur Pasaogullari; Trent Molter is a Engineering article available to read on EtoBox.

What is Influence of Ammonia on Membrane-electrode Assemblies in Polymer Electrolyte Fuel Cells about?

An experimental investigation of contamination of polymer electrolyte fuel cell (PEFC) membranes and catalyst layers with ammonia (NH 3 ) is reported. Cyclic voltammetry (CV) scans and electrochemical impedance spectroscopy (EIS) analyses show that trace amounts of ammonia can significantly contaminate both the polymer electrolyte membrane (PEM) and the catalyst layers. The results show that the catalyst layer contamination can be reversed under certain conditions, while the membrane recovery tends to be much slower, and permanent effects of ammonia contamination is observed. Mechanisms of contamination of the polymer electrolyte and catalyst layers, and performance degradation of the PEFC are also postulated.

Who reads Influence of Ammonia on Membrane-electrode Assemblies in Polymer Electrolyte Fuel Cells?

Author

Xiaoyu Zhang; Ugur Pasaogullari; Trent Molter

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0360-3199)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)