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.
Ag-Al2O3
XPS
Hydrogen effect
propene
nitric-oxide
propane
lean conditions
HC-SCR
Surface nitrates
in-situ ftir
DRIFTS
higher hydrocarbons
ag/al2o3 catalysts
selective catalytic-reduction
silver-alumina catalyst
reduction
nox
Author
Hannes Kannisto
Competence Centre for Catalysis (KCK)
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
Hanna Härelind
Competence Centre for Catalysis (KCK)
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
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 (SSIF 2011)
Other Engineering and Technologies
DOI
10.1007/s11244-009-9359-1