Polyhedral Au nanocrystals enclosed by a variety of index facets are prepared: cubic Au NCs enclosed by {100} facets; truncated octahedral Au NCs enclosed by {100} and {110} facets; and trisoctahedral Au NCs enclosed by 24 high-index {441} facets. It is found that high index facets exhibit much higher catalytic activity toward oxygen reduction and oxygen evolution reactions in Li–O2 batteries.
- Dawei Su
- Shixue Dou
- Guoxiu Wang
