ISSN:
1572-879X
Schlagwort(e):
Reduction of NO
;
NO x
;
PdO-MoO3 catalysts
;
pollution abatement
;
automotive catalysts
;
mixed metal catalysts
;
MoO3 catalysts
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract The catalytic activity and selectivity of three PdO-MoO3/γ-Al2O3 catalysts containing about 2% Pd and 2% Mo were studied for the reduction of NO by h2 in the presence of varying amounts of oxygen at temperatures from 50 to 550 °C. The results are compared with those for PdO/γ-Al2O3, PdO-MoO3/γ-Al2O3 containing 2% Pd and 20% Mo, and a commercial Pt-Rh catalyst. In the absence of oxygen, the conversion of NO to N2 and N2O is higher on the three catalysts than it is on PdO/γ-Al2O3 at 500 and 550 °C. In the presence of oxygen, the yields of N2 and N2O are generally lower on two of the PdO-MoO3/γ-Al2O3 catalysts than on PdO/γ-Al2O3.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00769449
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