Catalytic activity trends of oxygen reduction reaction for nonaqueous Li-air batteries

J Am Chem Soc. 2011 Nov 30;133(47):19048-51. doi: 10.1021/ja208608s. Epub 2011 Nov 8.

Abstract

We report the intrinsic oxygen reduction reaction (ORR) activity of polycrystalline palladium, platinum, ruthenium, gold, and glassy carbon surfaces in 0.1 M LiClO(4) 1,2-dimethoxyethane via rotating disk electrode measurements. The nonaqueous Li(+)-ORR activity of these surfaces primarily correlates to oxygen adsorption energy, forming a "volcano-type" trend. The activity trend found on the polycrystalline surfaces was in good agreement with the trend in the discharge voltage of Li-O(2) cells catalyzed by nanoparticle catalysts. Our findings provide insights into Li(+)-ORR mechanisms in nonaqueous media and design of efficient air electrodes for Li-air battery applications.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Air
  • Catalysis
  • Electric Power Supplies*
  • Lithium / chemistry*
  • Oxidation-Reduction
  • Oxygen / chemistry*

Substances

  • Lithium
  • Oxygen