Publication detail

Selective Catalytic Reduction of NOx over Nano-Sized Gold Catalysts Supported on Alumina and Titania and over Bimetallic Gold-Silver Catalysts Supported on Alumina

Year: 2009

Type of publication: ostatní - přednáška nebo poster

Name of source: Eighth International Congress on Catalysis and Automotive Pollution Control - Volume 2

Publisher name: Université Libre de Bruxelles

Place: Brussels

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
cze	Selektivní katalytická redukce NOx na katalytických systémech na Ag-, Au- a AgAu-Al2O3 a -TiO2	Byla studována redukce NO na N2 pomocí dekanu v přebytku kyslíku a to na katalyzátorech na bázi zlata, stříbra a duálních katalyzátorů na bázi stříbra a zlata nanesených na anorganických nosičích Al2O3 a TiO2. Katalyzátory byly charakterizovány pomocí EDXS, adsorpce dusíku, UV-Vis a TEM.	HC-SCR;střibro;zlato;alumina;TiO2
eng	Selective Catalytic Reduction of NOx over Nano-Sized Gold Catalysts Supported on Alumina and Titania and over Bimetallic Gold-Silver Catalysts Supported on Alumina	The reduction of NO with octane under lean conditions was examined over gold supported on alumina and titania and over alumina supported bimetallic gold-silver catalysts. The silver loading was either 1.2 or 1.9 wt% whereas 0.3, 1 or 5 wt% gold was used. The catalysts were characterized by means of EDXS, N-2-adsortion, UV-Vis and TEM to correlate recorded results with different preparation methods. UV-Vis measurements indicated that gold was present in the form of fine Au particles, single Au ions and small (Au)(n)(delta+) clusters on the catalysts and silver was mainly present in the form of single Ag ions. The highest NO to N-2 reduction activity was recorded over the 0.3Au-Al2O3 catalyst. The Au-TiO2 catalysts did not result in significant NO to N-2 reduction.	HC-SCR;Gold;Silver;Aluminium oxide;Titanium oxide

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