Structural snapshots of the SCR reaction mechanism on Cu-SSZ-13

作者：Guenter Tobias; Carvalho Hudson W P; Doronkin Dmitry E; Sheppard Thomas; Glatzel Pieter; Atkins Andrew J; Rudolph Julian; Jacob Christoph R; Casapu Maria; Grunwaldt Jan Dierk

来源：Chemical communications, 2015, 51(44): 9227-9230.

DOI：10.1039/c5cc01758k

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.

• 出版日期2015