Fig. 2: Synthesis and characterization of Cu@Sustainion catalyst.

a–c SEM image (a), TEM image (b), and EDX elemental mappings (c) of Cu@Sustainion catalyst. d FTIR spectra of Cu and Cu@Sustainion catalysts.
a–c SEM image (a), TEM image (b), and EDX elemental mappings (c) of Cu@Sustainion catalyst. d FTIR spectra of Cu and Cu@Sustainion catalysts.