Paper Title:
Preparation of Nafion/SiO2 Composite Membrane of Direct Ethanol Fuel Cell
  Abstract

Membranes are made by doping and modifying the Nafion117 with Nano-silica(SiO2). The penetration and the proton conductivity of composite membrane are studied through gas chromatograph and electrochemical workstation. With the help of cross-section spectrum, it shows that the SiO2 particles can penetrate the internal membrane and the weight percentage is greater than 0.1% after doping and modifying the membranes of Nafion117, so the SiO2 particles has a very good combination with the substrate. The membrane which is handled by Sol on 60°C has high proton conductivity and high water retention performance in high temperature. The permeability coefficient of membrane which is handled by Sol on 60°C and by the other ways are 4.07×10-4cm2/s and 8.13×10-4 cm2/s respectively. It shows that the permeability coefficient of ethanol membrane is reduced by half after the Nafion117 membrane is handled by Sol on 60°C.

  Info
Periodical
Edited by
Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
Pages
395-400
DOI
10.4028/www.scientific.net/KEM.464.395
Citation
H. J. Ni, C. C. Lv, C. J. Zhang, P. Liao, "Preparation of Nafion/SiO2 Composite Membrane of Direct Ethanol Fuel Cell", Key Engineering Materials, Vol. 464, pp. 395-400, 2011
Online since
January 2011
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Price
$32.00
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