Aspects of the Role of Hydrogen in H-2-Assisted HC-SCR Over Ag-Al2O3
Journal article, 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
Author
Hannes Kannisto
Competence Centre for Catalysis (KCK)
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
Hanna Härelind Ingelsten
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
Competence Centre for Catalysis (KCK)
Magnus Skoglundh
Competence Centre for Catalysis (KCK)
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
Topics in Catalysis
1022-5528 (ISSN) 1572-9028 (eISSN)
Vol. 52 13-20 1817-1820Driving Forces
Sustainable development
Areas of Advance
Nanoscience and Nanotechnology
Transport
Energy
Materials Science
Subject Categories
Other Engineering and Technologies
DOI
10.1007/s11244-009-9359-1