Novel-SiO2-Doped Proton Exchange Membrane for Self-Humidifying Fuel Cell

Abstract:

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To retain the optimum hydration level of the proton exchange membrane fuel cell (PEMFC) without humidification sub-system, a novel self-humidifying composite membrane was fabricated by the technology of Si[OCH2CH3]4 in situ sol-gel reaction in a commercial Nafion 112 membrane. The physico-chemical properties of the membrane were studied by means of AFM, SEM and AC impedance. These results showed that the nano-SiO2 reactant was uniformly distributed in the composite membrane. It was found that the proton conductivity increased observably by dispersing 3 wt % nano-SiO2 in the composite membrane at low water content, and the SiO2/Nafion composite membrane improved the self-humidifying performance of PEMFC.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

537-540

DOI:

10.4028/www.scientific.net/KEM.336-338.537

Citation:

C. Wang et al., "Novel-SiO2-Doped Proton Exchange Membrane for Self-Humidifying Fuel Cell", Key Engineering Materials, Vols. 336-338, pp. 537-540, 2007

Online since:

April 2007

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Price:

$35.00

[1] C. Wang, ZQ Mao, JM Xu and XF Xie: Chem. J. Chinese U. Vol. 24 (2003), p.140.

[2] C. Wang, ZQ Mao, JM Xu and XF Xie: Sci. China Ser. G. Vol. 46 (2003), p.501.

[3] T. Okada, G. Xie and M. Meeg: Electrochimica Acta. Vol. 43 (1998), p.2141.

[4] C. Wang, ZQ Mao, JM Xu and XF Xie: Key Eng. Mat. Vol. 280-283 (2005), p.899.

[5] C. Wang, ZQ Mao, JM Xu and XF Xie: Chem. J. Chinese U. Vol. 26(2005), p.531.

[6] C. Wang, ZQ Mao, JM Xu and XF Xie: Chem. J. Chinese U. Vol. 26 (2005), p.125.

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