Fe ultra-small particles anchored on carbon aerogels to enhance the oxygen reduction reaction in Zn-air batteries

Abstract
The Fe–N4–O–Fe–N4 moiety as active sites in ultra-small Fe particles anchored on carbon aerogel exhibited superior performance towards the oxygen reduction reaction.
Funding Information
  • Taishan Scholar Project of Shandong Province (tsqn20161001)
  • National Natural Science Foundation of China (21773142, 22072076)