Mechanism and site requirements for NO oxidation on Pd catalysts

Chemical looping methane partial oxidation: The effect of the crystal size and O content of LaFeO3

“…In the opposite way, relatively low energy is required to remove O from large sized perovskites. Our observation is in good agreement with Iglesia's theory [45].…”

“…The larger band gap can be ascribed to the more confined valence electrons in small crystals. In addition, the reduced sites are less stable in small oxide crystals because the electrons remaining after O removal must be delocalized into high energy states [42,45]. This makes the Fe-O bond stronger, and thus, it is more difficult to remove O from the surface on the smaller crystals than on larger crystals.…”

Characterization and Catalytic Activity of Mn-Co/TiO2 Catalysts for NO Oxidation to NO2 at Low Temperature

“…The light-off temperature in the NO oxidation to NO 2 is significant for the low-temperature SCR of NO x reduction. Therefore the research into NO oxidation catalysts is important for the NO x removal and various catalysts have been researched, including the supported noble metals [3][4][5][6] and other metal oxides [7][8][9].…”

The Effect of Gamma-Al2O3Support on the NO Adsorption on Pd4Cluster

“…[4][5][6] Nitric oxide has an odd number of electrons and is one of the most versatile molecules, making its chemistry and adsorption process of particular interest. 13 The adsorption of NO on the supported catalyst surface has been investigated by both experimental 7,[14][15][16][17][18][19][20] and theoretical procedures. [21][22][23][24][25][26][27][28][29] NO adsorbs on small Pd clusters through its nitrogen atom in a tilted orientation, preferentially in the hcp threefold and bridge sites, 27 although the relative binding energies are strongly dependent on the size and geometry of the cluster employed.…”