Ti3+ doped V2O5/TiO2 catalyst for efficient selective catalytic reduction of NOx with NH3

Ultrathin tungsten-doped hydrogenated titanium dioxide nanosheets for solar-driven hydrogen evolution

“…2c), and this phenomenon explains that the positive charges around the Ti atom are increased due to W 6+ doping. 39,40 Therefore, Ti atoms with a large number of positive charges can enhance the adsorption of H 2 O molecules, which is beneficial for improving the photocatalytic hydrogen evolution performance.…”

Excellent electrical properties and high Curie temperature of the V2O5-modified Pb(Sc1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 ferroelectric crystal

“…4(d)), two obvious peaks at 463.82 eV for Ti 2p 1/2 and 458.15 eV for Ti 2p 3/2 are found (Table 2), indicating the Ti 4+ cation in the V-PSN-PMN-PT single crystal. 24,25 Fig. 4(e) shows the core level peaks of the V element.…”

“…The major peaks with a higher binding energy of 516.7 eV can be ascribed to V 5+ 2p, and another small peak at 515.4 eV can be related to V 4+ 2p. 25,26 Other elements such as Sc, Nb and Mg have a formal valence of +3, +5 and +2, respectively.…”

Significantly Enhanced Catalytic Performance of Fe2(SO4)3/CeO2 Catalyst for the Selective Catalytic Reduction of NOx by NH3

“…The reducibility and acidity of a catalyst are two important factors influencing its NH 3 –SCR performance. − The addition of Fe 2 (SO 4 ) 3 into CeO 2 led to an improvement of the surface acidity. The strong interaction among Fe, S, and Ce also induced the formation of Fe 2+ and increased Ce 3+ .…”