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DESIGN INNOVATION

Fabrication of Support Tubular Proton Exchange Membrane For Fuel Cell

[+] Author and Article Information
Ru-Jun Yu1

Department of Automation, Institute of Fuel Cell,  Shanghai Jiao Tong University, Shanghai 200030, China; R&D Center of Cleaning Energy of Shangdong,  Shandong University of Technology, Zibo 255049, Chinayu21cen@163.com

Guang-Yi Cao, Xin-Jian Zhu

Department of Automation, Institute of Fuel Cell,  Shanghai Jiao Tong University, Shanghai 200030, China

Xiu-Qing Liu, Zhong-Fang Li, Wei Xing

R&D Center of Cleaning Energy of Shangdong,  Shandong University of Technology, Zibo 255049, China

1

Corresponding author.

J. Fuel Cell Sci. Technol 4(4), 520-524 (Apr 17, 2006) (5 pages) doi:10.1115/1.2759501 History: Received December 30, 2005; Revised April 17, 2006

The support tubular proton exchange membranes (STPEMs) were fabricated successfully by impregnating porous silica pipe into a solution of perfluorinated resin. The structures of the inner, outer, and cross section of support PEM tube were characterized intensively by scanning electron microscopy observation. In addition, the conductivity and impermeability were measured by electrochemical impedance spectroscopy (EIS) and the bubble method, respectively. Results show that the conductivity of the PEM can reach as low as 1.46Sm when using the silica pipe of 0.7mm wall thickness. Subsequently, the ST membrane electrode assembly for direct methanol fuel cell (DMFC) and proton exchange membrane fuel cell (PEMFC) applications was prepared first by loading PtC and PtRuC catalyst ink onto the outer and inner surfaces of the PEM tube, respectively. The performances of the tubular DMFC and the PEMFC were tested on a self-made apparatus, which shows that the power density of tubular DMFC can reach 10mWcm2 when 4molL1 methanol solution flows through the anode at 80°C, and that the power density of tubular PEMFC can reach up to 60mWcm2 when hydrogen flows at the rates of 20mlmin1 through the anode at 60°C, both the cathodes adopting air-breathing mode.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

Device for impregnating the porous silica pipe

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Figure 2

Schematic diagram of the experimental setup for determination of leakage by bubble test

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Figure 3

Experiment cell for measuring the conductivity of tubular PEM

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Figure 4

Cross section diagram of a tubular fuel cell

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Figure 5

Porous silica pipe

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Figure 6

The inner surface of STPEM

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Figure 7

The cross-session of 0.7mm STPEM

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Figure 8

The outer surface of STPEM

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Figure 9

STPEM after washing away silica pipe by HF

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Figure 10

Performance of tubular PEMFC

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Figure 11

Performances of tubular DMFC at different temperature

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