Chinese Science Bulletin

, Volume 57, Issue 16, pp 1959–1963 | Cite as

A novel Co(phen)2/C catalyst for the oxygen electrode in rechargeable lithium air batteries

  • Hong Wang
  • XiaoZhen LiaoEmail author
  • QiZhong Jiang
  • XiaoWei Yang
  • YuShi He
  • ZiFeng MaEmail author
Open Access
Article Physical Chemistry


A novel Co(phen)2/C catalyst was prepared by coating cobalt(II) phenanthroline (phen) chelate on BP2000 carbon black and then heat treating in an inert atmosphere. The obtained Co(phen)2/C product with 1.0 wt% cobalt loading exhibits similar morphology and porosity characteristics to those of the bare BP2000. X-ray diffraction measurements demonstrate a face-centered cubic (fcc) α-Co phase embedded in the carbon support after pyrolysis. Charge/discharge tests of the lithium-oxygen cells using the prepared Co(phen)2/C catalyst show high discharge capacities of 4870 mAh g−1 (0.05 mA cm−2), 3353 mAh g−1 (0.1 mA cm−2) and 3220 mAh g−1 (0.15 mA cm−2), respectively. The Co(phen)2/C cathode exhibits reasonable reversibility with capacity retention of 1401 mAh g−1 (0.1 mA cm−2) after 10 cycles. The superior electrochemical performance of the prepared Co(phen)2/C catalyst and low cost of the phenanthroline chelating agent indicate that Co(phen)2/C is a promising cheap catalyst for lithium-air batteries.


rechargeable lithium-air batteries cobalt phenanthroline catalyst oxygen electrode 


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© The Author(s) 2012

Open AccessThis is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (, which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  1. 1.Institute of Electrochemical and Energy Technology, Department of Chemical EngineeringShanghai Jiao Tong UniversityShanghaiChina

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