| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 57959 | Catalysis Today | 2007 | 8 Pages |
A new quantitative approach to in situ experiments is proposed based on consistent combination of modeling of the relevant processes in the catalyst pellet with realization of the multi-spectroscopic experiment under dynamic regimes. Using well defined Co- and Fe-FER samples the approach is illustrated by three case studies showing potential of the approach for detail analysis of the processes over metallo-zeolites, i.e. adsorption of NH3 on CoNa-FER, and reactions of selective catalytic reduction of NO by NH3, and N2O decomposition over Fe-FER. Combination of simultaneous in situ FTIR and UV-Vis spectroscopies under transient conditions and a single-pellet reactor model of the spectroscopic cell are used for obtaining some quantitative information on the transport, adsorption/desorption phenomena, and surface species transformation over transition metal ion/zeolite system under such conditions.
