affiliation not provided to SSRN
Graphene ball-flower, Mesoporous petal, Magnesium oxide, Chemical vapor deposition, Electric double-layer capacitor
Graphene shell, Nitrogen doping, Phosphorus doping, Chemical vapor deposition, Metal-free catalyst, Oxygen Reduction Reaction
Hierarchical carbon nanocages, Zeolite templated carbon, Multilevel porous carbon shells, Nanocavities, Oxygen Reduction Reaction, Zn-Air batteries