Preparation of metal-organic framework Cu+/Ni-MOF catalyst with enhanced catalytic activity for selective catalytic reduction of NOx

A series of Cu+/Ni-MOF materials with different Cu loading were prepared by a hydrothermal method and were applied on selective catalytic reduction with NH3-SCR. From characterization results of XRD, XPS and TPR, it could be inferred that Cu+ species have been successfully introduced into the Ni-MOF framework. Compared with monometallic Ni-MOF catalyst, all bimetallic Cu+/Ni-MOF sample showed much better NH3-SCR activity at low temperature and achieved about 30% increase in the maximum catalytic efficiency at 320 °C, which indicating a good synergistic effect between copper and nickel ions.