TY - GEN
T1 - Accelerated durability testing of perfluorosulfonic acid MEAs for PEMFCs using different relative humidities
AU - Rodgers, Marianne P.
AU - Agarwal, Rohit
AU - Pearman, Benjamin P.
AU - Li, Bo
AU - Slattery, Darlene K.
AU - Bonville, Leonard J.
AU - Kunz, H. Russell
AU - Fenton, James M.
PY - 2009
Y1 - 2009
N2 - Durability studies were carried out on membrane electrode assemblies (MEA)s containing commercial Nafion® membranes. Fuel cells were run under hydrogen/air for 100 hours at 10 to 100% relative humidity, 90 and 100 °C, and open circuit voltage. The voltage was monitored during the durability test, as was the condensate water for presence of fluoride ions. Crossover current (CO), electrochemically active surface areas (ECA), and polarization curves were evaluated pre- and post- test. High and low %RH (10 and 80-100% RH) resulted in the least degradation while medium-low %RH (20-30% RH) resulted in the highest level of degradation. By examining the various parameters that were used to measure the level of degradation more closely, it may be possible to gain a deeper understanding of how the humidity of an operating fuel cell effects degradation.
AB - Durability studies were carried out on membrane electrode assemblies (MEA)s containing commercial Nafion® membranes. Fuel cells were run under hydrogen/air for 100 hours at 10 to 100% relative humidity, 90 and 100 °C, and open circuit voltage. The voltage was monitored during the durability test, as was the condensate water for presence of fluoride ions. Crossover current (CO), electrochemically active surface areas (ECA), and polarization curves were evaluated pre- and post- test. High and low %RH (10 and 80-100% RH) resulted in the least degradation while medium-low %RH (20-30% RH) resulted in the highest level of degradation. By examining the various parameters that were used to measure the level of degradation more closely, it may be possible to gain a deeper understanding of how the humidity of an operating fuel cell effects degradation.
UR - https://www.scopus.com/pages/publications/77649240871
U2 - 10.1149/1.3210741
DO - 10.1149/1.3210741
M3 - Conference Paper published in a book
AN - SCOPUS:77649240871
SN - 9781566777384
T3 - ECS Transactions
SP - 1861
EP - 1871
BT - ECS Transactions -Proton Exchange Membrane Fuel Cells 9
T2 - 9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society
Y2 - 4 October 2009 through 9 October 2009
ER -
