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- W2066450811 abstract "The dynamic response performance of a proton exchange membrane fuel cell (PEMFC) significantly affects its durability and reliability. Thus, the improvement of the dynamic performance of PEMFC has become the key for prolonging the PEMFC life in fuel cell vehicle applications. In this study, RuO2·xH2O is prepared by sol–gel method, and then sprayed onto catalyst layers to promote PEMFC dynamic response performance. The prepared RuO2·xH2O is characterized by TEM, which shows that the average particle size of RuO2·xH2O is 8 nm and that the particulates are uniformly distributed. A 10-cell stack is assembled using membrane electrode assembly (MEA) with and without RuO2·xH2O. This stack is studied under various loading cycles and operating conditions, including different air stoichiometries, relative humidities, and loading degrees. Results show that the steady-state performance of the MEA with RuO2·xH2O is better than that in the MEA without RuO2·xH2O with a decreasing relative humidity from 80% to 20%. A slower and more unstable dynamic response of the MEA without RuO2·xH2O is observed as air stoichiometry and relative humidity decrease as well as the loading increase. Thus, RuO2·xH2O improves the dynamic response performance, indicating that RuO2·xH2O can buffer the voltage undershoot, improve the stability, and prolong the lifetime of the PEMFC stack." @default.
- W2066450811 created "2016-06-24" @default.
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- W2066450811 date "2013-11-01" @default.
- W2066450811 modified "2023-09-28" @default.
- W2066450811 title "Dynamic response performance of proton exchange membrane fuel cell stack with Pt/C–RuO2·xH2O electrode" @default.
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- W2066450811 doi "https://doi.org/10.1016/j.jpowsour.2013.05.058" @default.
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