Controllable modulation of oxygen functional groups and structure defects of porous carbon spheres for CO oxidation

Porous carbon spheres (PCSs) were synthesized by surfactant assisted-hydrothermal method and the oxygen functional groups and structure defects of PCSs were controllably modulated by O3 treatment technology. Especially, the treated time and temperature played the significant roles in this strategy. Notably, the SEM indicated that the morphology and particle size of PCSs had not been changed basically after O3 treatment. However, the specific...