Paper Title:
Novel-SiO2-Doped Proton Exchange Membrane for Self-Humidifying Fuel Cell
  Abstract

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, N. F. Wan, Z. Q. Mao, J. M. Xu, "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
$32.00
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