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Category : Power resources
Languages : en
Pages : 664
Book Description
Energy Research Abstracts
Author: Scientific and Technical Aerospace Reports
Author: NASA Technical Memorandum
Author: Preparation and Evaluation of Advanced Electrocatalysts for Phosphoric Acid Fuel Cells
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781724683731
Category :
Languages : en
Pages : 28
Book Description
The highest performance fuel cell cathode electrocatalyst combination ever observed gives 755 mV vs hydrogen at 100 ASF on air at 180 C and shows a potential improvement to 775 mV vs hydrogen for better electrode structures. A pressurized fuel cell (UTC at 5 atm) would then give 805 mV at 320 ASF and 180 C. Another activity diagnostic is the performance of this electrocatalyst on oxygen at 900 mV vs hydrogen. The value for electrocatalyst is 44 mA per milligram of platinum and is projected to reach 60 mA per milligram of platinum with improved electrode structures. Since the electrocatalyst surface area and the electrode structure are not yet optimized there is considerable room for performance enhancement beyond these values, especially at higher temperatures. Stonehart, P. and Baris, J. and Hochmuth, J. and Pagliaro, P. Unspecified Center NASA-CR-165425, DOE/NASA/0176-81/2, QR-6 DEN3-176; DE-A103-80ET-17088
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