Hydrogen promotes the selective catalytic reduction of NO by ethanol over Ag/Al2O3

Complete oxidation of o-xylene over Pd/Al2O3 catalyst at low temperature

“…Bands corresponding to n as (COO À ) and n s (COO À )) for carboxylate (C ! 2) and formate species were detected at 1587, 1568, 1450 and 1370 cm À1 [28][29][30][31]. Bands due to the vibrations of bicarbonate species rose at 3630, 1653, and 1427 cm À1 [32,33].…”

Environmentally-benign catalysts for the selective catalytic reduction of NOxfrom diesel engines: structure–activity relationship and reaction mechanism aspects

“…212 We were the first to report the pronounced promotional effect of H 2 on NO x reduction by ethanol over Ag/Al 2 O 3 even in the presence of water vapor. 213 Evidence provided by in situ DRIFTS revealed that the presence of H 2 enhanced the formation of enolic species during the partial oxidation of ethanol over Ag/Al 2 O 3 at low temperatures. Such enhancement by H 2 was also confirmed by GC-MS analysis, by promoting the formation of organic nitrogen-containing intermediates such as CH 3 -NO 2 and CH 3 CN during the ethanol-SCR over Ag/Al 2 O 3 at low temperatures.…”

Photocatalytic Reduction of NO with Ethanol on Ag/TiO2

“…The increasing use of oxygenated organic compounds, particularly ethanol, as fuel or additives for automotive vehicles required the study of the reaction between NO and ethanol. Ethanol was found to be extremely effective for NO x reduction over Ag/Al 2 O 3 , which displays high tolerances to water and SO 2 [5][6][7][8][9][10][11][12][13][14][15]. By means of FTIR spectroscopy two absorption bands were detected at 2,228-2,235 and 2,255-2,260 cm -1 , which were attributed to NCO species.…”