Synthesis of CrO_x/C catalysts for low temperature NH₃-SCR with enhanced regeneration ability in the presence of SO₂

Abstract

Novel CrOx@C catalyst with both remarkable NH3-SCR activity and satisfactory regeneration ability in the presence of SO2.

Effects of RhCrOx Cocatalyst Loaded on Different Metal Doped LaFeO3 Perovskites with Photocatalytic Hydrogen Performance under Visible Light Irradiation

“…In addition, the Cr 2p spectra for all samples were comparable, where the Cr 2p 3/2 signal can be divided into two peaks at 577.4 eV and 580.3 eV, corresponding to Cr 3+ and Cr 6+ , respectively. The relative amounts of Cr 3+ and Cr 6+ ions were analogous, indicating their similar Cr state [36].…”

Activation of Na2S2O8 by α-Fe2O3/CuS composite oxides for the degradation of Orange II under visible light irradiation

“…The textural and surface properties of the catalysts are very important, 51 so the morphologies of α-Fe 2 O 3 , CuS and α-Fe 2 O 3 /CuS catalysts were determined by SEM. Micro-flowers of α-Fe 2 O 3 are shown in Fig.…”

Promotion Effect of Chromium on the Activity and SO2 Resistance of CeO2–TiO2 Catalysts for the NH3-SCR Reaction

“…Both peaks of 576.8 and 586.3 eV can be ascribed to Cr 3+ , and the peak at 579.1 eV should be attributed to Cr 6+ . 42 Table 2 shows that the rate of Ce 3+ on CrCeTi is higher than that on CeTi, and the rate of Cr 6+ on CrCeTi is also larger than that on CrTi. This should be attributed to the redox reaction: 3Ce 4+ + Cr 3+ ↔ 3Ce 3+ + Cr 6+ .…”