Fig. 5

(a) Surface area analysis (BET), (b) pore size distribution analysis (BJH) of PEM and CZ-20@PEM. FTIR spectra of (c) pristine CuP and ZnW, (d) CZ NCs, (e) PEM, and CZ-20@PEM. VB-XPS analysis of (f) CZ-20 NC and (g) CZ-20@PEM.

(a) Surface area analysis (BET), (b) pore size distribution analysis (BJH) of PEM and CZ-20@PEM. FTIR spectra of (c) pristine CuP and ZnW, (d) CZ NCs, (e) PEM, and CZ-20@PEM. VB-XPS analysis of (f) CZ-20 NC and (g) CZ-20@PEM.