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  • Title: Structural investigation of the promotional effect of hydrogen during the selective catalytic reduction of NOx with hydrocarbons over Ag/Al2O3 catalysts.
    Author: Breen JP, Burch R, Hardacre C, Hill CJ.
    Journal: J Phys Chem B; 2005 Mar 24; 109(11):4805-7. PubMed ID: 16863131.
    Abstract:
    In situ EXAFS has been used to examine the hydrogen effect on the selective catalytic reduction of NOx over silver/alumina catalysts. For all SCR conditions used, with or without co-reductant (H2 or CO), the catalyst structure remained the same. Significant changes in the catalyst were only found under reducing conditions. The enhanced activity found in the presence of hydrogen is thought to be due to a chemical effect and not the result of a change in the structure of the active site.
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