Title
Palladium Deposition On Proton Exchange Membranes
Abstract
The performance of direct methanol fuel cells (DMFC) is still not satisfactory due to high methanol crossover despite considerable efforts to develop new membranes that are impermeable to methanol. Pd-coated composite membranes are fabricated by spraying palladium onto the Nafion® 117 membrane surfaces under nitrogen pressure. Complete membrane electrode assemblies are made by screen-printing and tested for methanol crossover, membrane resistance, and performance. Methanol crossover is reduced by 35% with a Pd-coated Nafion 117 membrane compared to an un-coated Nafion 117 membrane, but the conductivity has not been changed due to Pd's nature of being a pseudo-proton conductor. The cell performance is increased by 30 mv at 100 mA/sq cm. The results show promising application of Pd-deposited proton exchange membranes in DMFC. This is an abstract of a paper presented at the 230th ACS National Meeting (Washington, DC 8/28/2005-9/1/2005).
Publication Date
12-1-2005
Publication Title
ACS National Meeting Book of Abstracts
Volume
230
Number of Pages
-
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
Copyright Status
Unknown
Socpus ID
33745398370 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/33745398370
STARS Citation
Xu, Hui; Kunz, H. Russell; and Fenton, James M., "Palladium Deposition On Proton Exchange Membranes" (2005). Scopus Export 2000s. 3306.
https://stars.library.ucf.edu/scopus2000/3306