Figure 2

XRD patterns (left) and TEM/HRTEM (right) images of SnO2 NPs before and after the aerobic ethanol oxidation reaction.
The SnO2@C core-shells were formed upon the aerobic reaction.

XRD patterns (left) and TEM/HRTEM (right) images of SnO2 NPs before and after the aerobic ethanol oxidation reaction.
The SnO2@C core-shells were formed upon the aerobic reaction.