✦ LIBER ✦

The performance analysis of direct methanol fuel cells with different hydrophobic anode channels

✍ Scribed by Hung-Chun Yeh; Ruey-Jen Yang; Win-Jet Luo; Jia-You Jiang; Yean-Der Kuan; Xin-Quan Lin

Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 628 KB
Volume: 196
Category: Article
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2010.06.033

No coin nor oath required. For personal study only.

✦ Synopsis

In order to enhance the performance of the direct methanol fuel cell (DMFC), the product of CO 2 bubble has to be efficiently removed from the anode channel during the electrochemical reaction. In this study, the materials of Polymethyl Methacrylate (PMMA) with hydrophilic property and polydimethylsiloxane (PDMS) with hydrophobic property are used to form the anode cannel. The channel is fabricated through a microelectromechanical system (MEMS) manufacture process of the DMFCs. In addition, some particles with high hydrophobic properties are added into the PDMS materials in order to further reduce the hydro-resistance in the anode channel. The performance of the DMFCs is investigated under the influence of operation conditions, including operation temperature, flow rate, and methanol concentration. It is found that the performance of the DMFC, which is made of PDMS with high hydrophobic particles, can be greatly enhanced and the hydrophobic property of the particles can be unaffected by different operation conditions.

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