Journal
JOURNAL OF NATURAL GAS CHEMISTRY
Volume 20, Issue 3, Pages 256-260Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-9953(10)60190-9
Keywords
PEMFC; dynamic response; RuO2 center dot xH(2)O; electrodeposite
Funding
- National Natural Science Foundation of China [20776023, 20976018]
Ask authors/readers for more resources
Dynamic response performance of proton exchange membrane (PEM) fuel cells affects its durability and reliability significantly. In this study, electrodeposited RuO2 center dot xH(2)O-Pt/C was prepared to promote the PEM fuel cell dynamic response performance. The prepared RuO2 center dot xH(2)O-Pt/C was characterized by scanning electron microscopy (SEM) equipped with energy disperse spectroscopy (EDS), which shows that RuO2 center dot xH(2)O was electrodeposited on the surface of Pt/C. Performance of single cells with and without RuO2 center dot xH(2)O-Pt/C at the cathode under a certain operating condition was studied using cyclic voltammetry, electrochemical impedance spectra (EIS) and polarization curve techniques. When the fuel cell modified with RuO2 center dot xH(2)O-Pt/C was operated at lower pressure, a faster and more stable dynamic response could be found. Modifying with RuO2 center dot xH(2)O-Pt/C composite material not only slightly increases the single cell performance but also dramatically improves the dynamic response performance, revealing that RuO2 center dot xH(2)O-Pt/C can buffer the voltage undershoot whenever the current increases instantly.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available