Premium
Cover Picture: Highly Unsaturated Cr II /SiO 2 Single‐Site Catalysts for Reducing Nitrogen Oxides with CO: Reaction Intermediates and Catalytic Cycle (ChemCatChem 3/2010)
Author(s) -
Zecchina Adriano,
Otero Areán Carlos,
Groppo Elena
Publication year - 2010
Publication title -
chemcatchem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201090009
Subject(s) - catalysis , chromia , chemistry , nitrogen , reaction mechanism , catalytic cycle , reaction intermediate , cover (algebra) , fourier transform infrared spectroscopy , inorganic chemistry , photochemistry , chemical engineering , organic chemistry , mechanical engineering , engineering
The cover picture shows a proposed reaction mechanism for the reduction of nitrogen oxides with CO over a silica‐supported chromia catalyst. In their Communication on page 259 ff., Groppo et al. demonstrate the potential of single Cr II active sites in this reaction. The use of FTIR spectroscopy allows identification of the intermediate species and also shows that the mechanism, incorporating three coupled catalytic cycles, depends on the NO/CO reactant ratio.