Removal of Mercury from Coal-Fired Flue Gas and Its Sulfur Tolerance Characteristics by Mn, Ce Modified γ-Al₂O₃ Catalyst

Figure 4

XPS spectra of: (a) fresh and spent catalysts for Mn 2p of Mn-Ce/γ-Al₂O₃; (b) fresh and spent catalysts for Ce 3d of Mn-Ce/γ-Al₂O₃.

(a)

(b)