Selective catalytic reduction standard reaction

The simplest variant of the selective catalytic reduction of NO with NH3 is the standard-SCR reaction, in which NH3 and NO comproportionate in a 1 1 stoichiometry to nitrogen. This reaction is efficiently catalyzed with high activity and selectivity between 300 and 400°C by V205/W03-Ti02 catalysts, which are wide-spread in stationary SCR systems [1],... 

The term electrocatalysis will be used in the following for designing electrochemical processes involving the oxidation or reduction of a substrate species, S, whose reaction rate is varied in the presence of a given catalytic species. Cat. The effect of electrocatalysis is an increase of the standard rate constant of the electrode reaction resulting in a shift of the electrode reaction to a lower overpotential at a given current density and a current increase. The faradaic current resulting from the occurrence of a catalytic electrode mechanism is called catalytic current. For a positive electrocatalysis, the current obtained in the presence of the catalyst must exceed the sum of the currents obtained for the catalyst and the substrate, separately, under selected experimental conditions (Bard et al., 2008). Three possible situations can be discerned ... 

The formation of C—N bonds is an important transformation in organic synthesis, as the amine functionality is found in numerous natural products and plays a key role in many biologically active compounds [1]. Standard catalytic methods to produce C—N bonds involve functional group manipulations, such as reductive amination of carbonyl compounds [2], addition of nucleophiles to imines [3], hydrogenation of enamides [4—8], hydroamination of olefins [9] or a C—N coupling reaction [10, 11]. Recently, the direct and selective introduction of a nitrogen atom into a C—H bond via a metal nitrene intermediate has appeared as an attractive alternative approach for the formation of C—N bonds [12-24]. 

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