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- W2023200780 abstract "Ag/Al2O3 catalysts modified by Si, Ti, Mg and W were studied to obtain higher NOx SCR activity and potentially also higher SO2 resistance than the pure silver-based catalyst for automotive applications. Addition of Ti or Si to the alumina support leads to a better NOx removal at low temperature i.e. reduces the SCR onset temperature by about 10 °C under the applied conditions. However, it does not increase the SO2 resistance. The catalysts and the supports have been characterized by BET, conventional and synchrotron XRD, X-ray absorption spectroscopy during temperature-programmed reduction (XAS-TPR) and temperature-programmed desorption of ammonia (NH3-TPD). The obtained results suggest a better silver dispersion and better regeneration capability in the case of Ti- and Si-modified Ag/Al2O3 catalysts." @default.
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- W2023200780 date "2014-04-01" @default.
- W2023200780 modified "2023-10-16" @default.
- W2023200780 title "Ti and Si doping as a way to increase low temperature activity of sulfated Ag/Al2O3 in H2-assisted NH3-SCR of NOx" @default.
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- W2023200780 doi "https://doi.org/10.1016/j.apcatb.2013.10.040" @default.
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