batteries. Herein, we report a designed synthesis of nitrogen-doped mesoporous hollow
carbon spheres with tunable void spaces through an ethylenediamine-assisted cooperative
self-assembly strategy between 3-aminophenol/formaldehyde resin and silica. Nitrogen-
doped hollow mesoporous carbon spheres (NHMCS) with an optimised inside/outside
radius ratio of 0.52 have induced improved electrochemical performances compared to …