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090			_aB-13971
245	1	0	_aCharacterisation of proton exchange membrane fuel cell (PEMFC)failures via electrochemical impedance spectroscopy
490	0		_vJournal of Power Sources, 161(1), p.264-274, 2006
520	3		_aTwo PEMFC failure modes (dehydration and flooding)were investigated using in situ electrochemical impedance spectroscopy (EIS)on a four-cell stack under load. The EIS measurements were made at different temperatures (70 and 80 .C), covering the current density range 0.1.1.0Acm.2, and the frequency range 0.1.2_105 Hz. Dehydration and flooding effects were observed in the frequency ranges 0.5.105 and 0.5.102 Hz, respectively. We propose that impedance measurements at separate frequency ranges (or narrow bands thereof)can be used to distinguish between flooding and dehydration events. Similar approaches may be used to diagnose other important PEMFC failures.
650	1	4	_aFUEL CELL
650	1	4	_aFAILURE
650	1	4	_aDIAGNOSIS
650	1	4	_aIMPEDANCE
700	1	2	_aMérida, W
700	1	2	_aHarrington, D.A.
700	1	2	_aLe Canut, J.M.
700	1	2	_aMclean G.
856	4	0	_uhttps://drive.google.com/file/d/16qxhaLnfnzMZYAPsmULYbzEQpxXj-NO5/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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