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Keywords:

  • fuel cell electrode;
  • graphene;
  • graphite;
  • ionic liquids;
  • Li-ion battery;
  • supercapacitor;
  • mesoporous;
  • N-doped carbon

Abstract

The use of ionic liquids (ILs) as precursors for functional carbon materials is reviewed, showing that they are highly promising starting compounds for this purpose: As liquids with negligible vapour pressure, simple processing and structural control of the resulting carbons can be achieved. The architecture of ILs allows for a wide combination of anions and cations, which can be used to tailor the amount of heteroatom-doping in the resulting carbon materials. As ILs are well compatible with a variety of compounds, carbon composites can be simply prepared. Considerable progress in applications of these materials has been presented for example as electrodes in fuel cells, supercapacitors or Li-ion batteries.