Enhanced thermo-electrochemical power using carbon nanotube additives in ionic liquid redox electrolytes

نویسندگان

  • Pablo F. Salazar
  • Sai T. Stephens
  • Ali H. Kazim
  • Jennifer M. Pringle
  • Baratunde A. Cola
چکیده

Waste heat recovery with thermo-electrochemical cells is limited by their low power and conversion efficiencies. Here we explore ionic liquid electrolytes mixed with multiwall carbon nanotubes (MWCNTs) as alternative electrolytes for thermo-electrochemical cells. The results show that, upon addition of MWCNTs, the combination of interfacial polarization and ion pair dissociation reduces mass transfer resistances and enhances the power of thermo-electrochemical cells at low weight percentage of MWCNTs by up to 30%. This occurs in spite of reduced open circuit voltage due to percolated networks.

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تاریخ انتشار 2014