| | | | AppliedCatalysis B: Environmental | Cultivariativariativaricatalystivereductivereduction NH3 | | | | | | | CuO- | Nb2O5/CeO2 | | Ce3 + Nb5 | + Cu2+ Nb | Ce | NH3-SCR | | | | | | | | | | | | | | | | | | | | |