4.8 Article

Mobility of Cu Ions in Cu-SSZ-13 Determines the Reactivity of Selective Catalytic Reduction of NOx with NH3

Journal

JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 12, Issue 12, Pages 3210-3216

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.1c00181

Keywords

-

Funding

  1. Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning (MSIP) [NRF-2016R1A5A1009592]

Ask authors/readers for more resources

The study aims to reveal the mobility-dependent SCR reaction by controlling Cu species with different ion mobilities in Cu-SSZ-13. The results indicate that enhanced ion mobility leads to improved NH3-SCR activity, providing insights for designing rational catalysts by tuning ion mobility.
Selective catalytic reduction of NOx with NH3 (NH3-SCR) in Cu-SSZ-13 has been proposed to have a unique homogeneouslike mechanism governed by the spatial proximity of mobile Cu ions. Among factors that determine the proximity, the effect of ion density on the SCR reaction is well established; however, it has not been verified how the different mobility of the Cu ion influences the SCR reaction. Herein, we try to reveal the mobility-dependent SCR reaction by controlling the Cu species with different ion mobilities in Cu-SSZ-13. Since the reaction kinetics is governed by the diffusion of Cu ions, the Cu ion mobility determines the reactivity of the Cu-SSZ-13. In terms of this correlation, enhanced ion mobility leads to improved NH3-SCR activity. These findings help understand the behavior of Cu ions in Cu-SSZ-13 under a catalytic reaction and provide insights to design rational catalysts by tuning the ion mobility.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available