Fig. 2

Structural characterization of PANI@WO3-P/NF. Deconvoluted core level XPS spectra of (A) W 4f, (B) P 2p, (C) N 1 s, and (D) O 1s. Before and after cycling stability (upper and lower curve respectively, after 10000 GCD cycling).

Structural characterization of PANI@WO3-P/NF. Deconvoluted core level XPS spectra of (A) W 4f, (B) P 2p, (C) N 1 s, and (D) O 1s. Before and after cycling stability (upper and lower curve respectively, after 10000 GCD cycling).