Aspects of the Role of Hydrogen in H-2-Assisted HC-SCR Over Ag-Al2O3
Artikel i vetenskaplig tidskrift, 2009
The role of hydrogen in H-2-assisted HC-SCR of NOx over Ag-Al2O3 is investigated by XPS and in situ DRIFT spectroscopy. Hydrogen does not reduce the surface silver species to metallic silver, however direct reduction of surface nitrates by hydrogen is observed. It is proposed that one important role of hydrogen is the removal of nitrates from the Ag-Al2O3 surface.
propane
higher hydrocarbons
nox
propene
ag/al2o3 catalysts
Ag-Al2O3
selective catalytic-reduction
XPS
lean conditions
Hydrogen effect
HC-SCR
reduction
DRIFTS
silver-alumina catalyst
Surface nitrates
in-situ ftir
nitric-oxide
Författare
Hannes Kannisto
Kompetenscentrum katalys
Chalmers, Kemi- och bioteknik, Teknisk ytkemi
Hanna Härelind Ingelsten
Chalmers, Kemi- och bioteknik, Teknisk ytkemi
Kompetenscentrum katalys
Magnus Skoglundh
Kompetenscentrum katalys
Chalmers, Kemi- och bioteknik, Teknisk ytkemi
Topics in Catalysis
1022-5528 (ISSN) 1572-9028 (eISSN)
Vol. 52 13-20 1817-1820Drivkrafter
Hållbar utveckling
Styrkeområden
Nanovetenskap och nanoteknik
Transport
Energi
Materialvetenskap
Ämneskategorier
Annan teknik
DOI
10.1007/s11244-009-9359-1