Control of the Cu ion species in Cu-SSZ-13 <i>via</i> the introduction of Co<sup>2+</sup> co-cations to improve the NH<sub>3</sub>-SCR activity
Hwangho Lee, Inhak Song, Se Won Jeon, Do Heui Kim
Abstract
The cobalt co-cations were introduced to block the 2Al sites of SSZ-13 zeolite before the impregnation of Cu ions. Blocking the 2Al sites promotes the formation of highly mobile Cu ion species, which improves the NH<sub>3</sub>-SCR activity of the catalyst.
Topics & Concepts
CatalysisCobaltZeoliteChemistryIonInorganic chemistryBlock (permutation group theory)Nuclear chemistryOrganic chemistryGeometryMathematicsCatalytic Processes in Materials ScienceZeolite Catalysis and SynthesisCatalysis and Oxidation Reactions