Ferrocene-Containing Porous Poly(Ionic Liquid) Membranes: Synthesis and Application as Sacrificial Template for Porous Iron Oxide Films

Macromol Rapid Commun. 2021 Jul;42(13):e2100077. doi: 10.1002/marc.202100077. Epub 2021 Jun 1.

Abstract

Herein, the fabrication of iron-containing porous polyelectrolyte membranes (PPMs) via ionic complexation between an imidazolium-based poly(ionic liquid) (PIL) and 1,1-ferrocenedicarboxylic acid is reported. The key parameters to control the microstructure of porous hybrid membranes are investigated in detail. Further aerobic pyrolysis of such porous hybrid membranes at 900 °C can transfer the ferrocene-containing PPMs into freestanding porous iron oxide films. This process points out a sacrificial template function of porous poly(ionic liquid) membranes in the fabrication of porous metal oxide films.

Keywords: ferrocene; poly(ionic liquid); porous iron oxide films; porous polyelectrolyte membranes.

MeSH terms

  • Ferric Compounds
  • Ionic Liquids*
  • Membranes, Artificial
  • Metallocenes
  • Porosity

Substances

  • Ferric Compounds
  • Ionic Liquids
  • Membranes, Artificial
  • Metallocenes
  • ferric oxide