Phosphoric acid functionalized pre-sintered meso-silica for high temperature proton exchange membrane fuel cells

Chem Commun (Camb). 2013 May 21;49(41):4655-7. doi: 10.1039/c3cc41716f. Epub 2013 Apr 12.

Abstract

An inorganic proton exchange membrane based on sintered mesoporous silica and phosphoric acid was developed with a high proton conductivity of 0.06 S cm(-1) at 200 °C, achieving an excellent power output of 689 mW cm(-2) in H2 at 190 °C and 200 mW cm(-2) in methanol at 200 °C with no external humidification.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Dielectric Spectroscopy
  • Electric Conductivity
  • Electrolytes / chemistry
  • Methanol / chemistry
  • Phosphoric Acids / chemistry*
  • Porosity
  • Protons
  • Silicon Dioxide / chemistry*
  • Temperature

Substances

  • Electrolytes
  • Phosphoric Acids
  • Protons
  • Silicon Dioxide
  • phosphoric acid
  • Methanol