AI Article Synopsis
- The study used advanced X-ray spectroscopic methods to analyze copper sites in Cu-SSZ-13 during the NH3-SCR process.
- It demonstrated that NH3 strongly adsorbs on copper, reacts with weakly adsorbed NO, and that Cu(I) reoxidation occurs slowly.
- The mechanisms involved in the SCR reaction are notably different from those seen in Fe-ZSM-5.
Article Abstract
The structure of copper sites in Cu-SSZ-13 during NH3-SCR was unravelled by a combination of novel operando X-ray spectroscopic techniques. Strong adsorption of NH3 on Cu, its reaction with weakly adsorbed NO from the gas phase, and slow re-oxidation of Cu(I) were proven. Thereby the SCR reaction mechanism is significantly different to that observed for Fe-ZSM-5.
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| http://dx.doi.org/10.1039/c5cc01758k | DOI Listing |
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