Polymer supported organic catalysts for O2 reduction in Li-O2 batteries

Wei Weng, Christopher J. Barile, Peng Du, Ali Abouimrane, Rajeev S. Assary, Andrew A. Gewirth, Larry A. Curtiss, Khalil Amine

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13 Citations (Scopus)

Abstract

A novel organic catalyst has been synthesized that contains an anthraquinone moiety supported on a polymer backbone. This oxygen reduction catalyst was successfully incorporated in the cathode of Li-O2 batteries. The addition of the anthraquinone-based catalyst improved the cycleability of the Li-O2 battery when cycled in a tetraethylene glycol dimethyl ether electrolyte. Computational studies coupled with a wide range of analytical techniques including differential electrochemical mass spectrometry, cyclic voltammetry, electrochemical impedence spectroscopy, and X-ray diffraction were used to interrogate the Li-O2 battery with and without the organic catalyst present. This study suggests that organic catalysts may serve as light and inexpensive alternatives to the precious metals frequently used in Li-O2 batteries.

Original languageEnglish
Pages (from-to)138-143
Number of pages6
JournalElectrochimica Acta
Volume119
DOIs
Publication statusPublished - 10 Feb 2014

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Keywords

  • (Organic catalyst
  • Li-O batteries
  • Oxygen reduction reaction (ORR))

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

Weng, W., Barile, C. J., Du, P., Abouimrane, A., Assary, R. S., Gewirth, A. A., Curtiss, L. A., & Amine, K. (2014). Polymer supported organic catalysts for O2 reduction in Li-O2 batteries. Electrochimica Acta, 119, 138-143. https://doi.org/10.1016/j.electacta.2013.12.027