Investigation of an Anode Catalyst for a Direct Dimethyl Ether Fuel Cell

In this work, we compared investigation of Pt/multiwalled carbon nanotubes (MWNTs) and Pt/Vulcan XC-72 anode catalysts for direct dimethyl ether fuel cells (DDFC). The homemade catalysts were characterized using a transmission electron micrograph (TEM) and X-ray diffraction (XRD). The cyclic voltamm...

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Bibliographic Details
Published in:Energy & fuels 2009-02, Vol.23 (2), p.903-907
Main Authors: Cai, Ke-Di, Yin, Ge-Ping, Wang, Jia-Jun, Lu, Lei-Lei
Format: Article
Language:English
Subjects:
Fuel Cells
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Summary:In this work, we compared investigation of Pt/multiwalled carbon nanotubes (MWNTs) and Pt/Vulcan XC-72 anode catalysts for direct dimethyl ether fuel cells (DDFC). The homemade catalysts were characterized using a transmission electron micrograph (TEM) and X-ray diffraction (XRD). The cyclic voltammogram analyses revealed that the Pt/MWNTs showed a higher catalytic activity for dimethyl ether electro-oxidation, compared with the Pt/Vulcan XC-72 catalyst. The membrane electrode assembly (MEA) with the Pt/MWNTs anode catalyst presented the maximum power density of 38.4 mW cm−2, which was higher than that with the Pt/Vulcan XC-72 one (32.4 mW cm−2). Moreover, the performance decay rate of the MEA with Pt/MWNTs was lower than that with Pt/Vulcan XC-72 (after a 56 h test). It indicated that the Pt/MWNTs can be expected to be a more suitable catalyst for the DDFC.
ISSN:0887-0624
1520-5029
DOI:10.1021/ef8005965