Ethylene Hydrogenation Mechanism on Ag/SiO2 Catalysts Elucidated by Isotope Kinetics
, E-ISSN: 1572-879X
||Hydrogenation, isotopic exchange
Shestov Alexander A.
Muzykantov Vitaly S.
Center of Heterogeneous Catalysis, Rudower Chaussee 5, 12484 Berlin, Germany
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospect Akad. Lavrentieva 5, 630090 Novosibirsk, Russia
On a highly dispersed Ag/SiO2 catalyst the reaction of ethylene with hydrogen was studied by means of isotopic exchange. Although hydrogenation does not proceed below 550 K, a latent but intensive interaction between ethylene and hydrogen could be observed already at 480 K. On the investigated catalyst the mechanism of the ethylene hydrogenation is similar to that known for nickel, the catalytic behaviour, however, being distinctly different.