A dual-template method for the synthesis of bimetallic CuNi/SSZ-13 zeolite catalysts for NH3-SCR reaction

摘要

A series of bimetallic CuNi/SSZ-13 catalysts with various Cu/Ni ratios were successfully synthesized via a one pot hydrothermal route by using nickel-diethylenetriamine (Ni-DETA) and copper-tetraethylenepentamine (Cu-TEPA) as co-templates. Significantly, thanks to the introduction of Ni species which could inhibit the formation of copper oxides, bimetallic CuNi/SSZ-13 catalysts show enhanced performance for selective catalytic reduction of NOx with NH3 compared with Cu/SSZ-13 counterpart.