fig2
From: Coal tar pitch-derived nitrogen-doped carbon hosting iron for enhanced ammonia electrosynthesis
Figure 2. (A) Survey XPS spectra of Fe2O3/FeNC and NC. The XPS spectra of Fe2O3/FeNC in (B) Fe 2p, (C) N 1s, (D) O 1s, and (E) C 1s regions; (F) Raman spectra of Fe2O3/FeNC and NC. XPS: X-ray photoelectron spectroscopy.
