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The Study on the Dynamic Response Performance of PEMFC Stack with Electrodeposited Pt/C-RuO2·xH2O Electrode

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Abstract:

Dynamic response performance of PEMFC affects its durability and reliability significantly. So improving on dynamic performance of PEMFC has become the key for prolonging PEMFC life in fuel cell vehicles application. In this study, in order to promote the PEMFC dynamic response performance, RuO2·xH2O was prepared by solgel method and then sprayed onto catalyst layers. The RuO2·xH2O prepared was characterized by TEM, which shows the average particle size of RuO2·xH2O was 8 nm and particulates were well distributed. A 10-cell stack using MEAs with and without RuO2·xH2O was assembled and studied under different relative humidity. It was found that added with RuO2·xH2O dramatically improves the dynamic response performance, which revealing that RuO2·xH2O can buffer the voltage undershoot and improve the stability and lifetime of PEMFC stack.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

2263-2266

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.2263

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Online since:

August 2013

Authors:

Li Bin Fu*, Lu Lu, Hong Feng Xu, Hong Zhao, Rui Ming Ren

Keywords:

Dynamic Response, PEMFC Stack, Performance, RuO2·xH2O

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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