ChemInform Abstract: Enhancement of Catalytic Activity of Copper Ion-Exchanged Y Type Zeolites for the Decomposition of Nitrogen Monoxide.

ChemInform Abstract

Catalytic decomposition of NO over partially Cu(II)-exchanged Y zeolites (CuY) is the simplest method for removal of harmful NO because any reducing agents or absorbents are not necessary. This process is shown to be enhanced by additional loading of the zeolite with Co³⁺ or Ni²⁺ ions or by evacuation treatment around 923-973 K. The catalytic activity of CuY evacuated at 973 K is twice that of untreated CuY. Partial exchange with Ca²⁺, Mn²⁺, Fe²⁺, and Zn²⁺ diminishes the catalytic activity.