Modification research of sulfonated PEEK membranes used in DMFC

  • Zhang H
  • Fan X
  • Zhang J
 et al. 
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Abstract

Sulfonated poly(ether ether ketone) (SPEEK)/SiO2/zirconium phosphate (ZrP) composite membranes for direct methanol fuel cell (DMFC) application were pretreated from corresponding materials by the Sol-Gel process. The SPEEK/SiO2/ZrP (80/10/10) composite membranes showed a methanol permeability of 2.4 × 10- 7 cm2/s, lower than that of the SPEEK and Nafion117 membrane. The DMFC single cell assembled by the SPEEK/SiO2/ZrP (80/10/10) membrane had the highest OCV of 0.584 V, and its power density reached 18.7 mW/cm2when the current density was 75 mA/cm2. © 2008 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Direct methanol fuel cell
  • Silica
  • Sulfonated PEEK membrane
  • Zirconium phosphate

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