000			02012nam a2200277Ia 4500
003			MX-MdCICY
005			20250625153938.0
040			_cCICY
090			_aB-14278
245	1	0	_aImproving the performance of high-temperature PEM fuel cells based on PBI electrolyte
490	0		_vJournal of Power Sources, 160(1), p.27-36, 2006
520	3		_aThis paper describes the testing of the gas-diffusion electrodes for polymer electrolyte membrane fuel cells utilizing phosphoric acid doped polybenzimidazole (PBI)electrolyte, which allows for an operating temperature as high as 200 .C. In order to determine the optimum structure of our anodes and cathodes, the platinum content in the Pt/C catalyst and catalyst loading were varied, as well as the loading of the PBI electrolyte dispersed in the catalyst layer. The different MEAs were tested in terms of their performance by recording polarization curves using pure oxygen and hydrogen. It was found that a high platinum content and a thin catalyst layer on both anode and cathode, gave the overall best performance. This was attributed to the different catalyst surface areas, the location of the catalyst in relation to the electrolyte membrane and particularly the amount of PBI dispersed in the catalyst layer. Scanning electron microscopy (SEM)was used in order to examine the cross-section of the MEAs and measure the thickness of the catalyst layers. With this information, it was possible to give an estimate of the porosity of the catalyst layer.
650	1	4	_aPEM
650	1	4	_aFUEL CELL
650	1	4	_aPOLYBENZIMIDAZOLE
650	1	4	_aPBI
650	1	4	_aCO POISONING
650	1	4	_aELECTROCATALYSIS
700	1	2	_aSeland, F.
700	1	2	_aBerning, T.
700	1	2	_aBorresen, B
700	1	2	_aTunold, R.
856	4	0	_uhttps://drive.google.com/file/d/1i5fxs8-Fn0oyzOcjVwYFO6uNBEjury_l/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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