Influence of catalyst composition on NOx storage and reduction characteristics of Ag catalyst supported on MgO-doped alumina
A novel material (Ag/MgO-Al 2 O 3) for storage of NO x under cold-start conditions and its
reduction in the high-temperature stabilized phase is synthesized, and the influence of MgO
and Ag loading on its NO x removal performance is investigated. A high MgO loading
increases the NO x storage capacity but also decreases the stability of adsorbed NO x.
Moreover, it decreases the adsorption rate at early times since NO x spillover is inhibited.
The catalysts with the lowest Ag and MgO loading exhibit the highest NO oxidation activity …
reduction in the high-temperature stabilized phase is synthesized, and the influence of MgO
and Ag loading on its NO x removal performance is investigated. A high MgO loading
increases the NO x storage capacity but also decreases the stability of adsorbed NO x.
Moreover, it decreases the adsorption rate at early times since NO x spillover is inhibited.
The catalysts with the lowest Ag and MgO loading exhibit the highest NO oxidation activity …
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