The selective hydrogenation of crotonaldehyde over bimetallic catalysts

The selective hydrogenation of crotonaldehyde has been investigated over a monometallic Pt/SiO;The Pt-Sn bimetallic catalysts were characterized by hydrogen chemisorption, ;Initial heats of adsorption (;Selective site blocking of the low coordination edge and corner sites by Cu or Ag as well as reduction in the Pt ensemble size did not lead to the formation of crotyl alcohol as has been postulated in previous work. Also, these low coordination edge and corner sites cannot be responsible for the olefin hydrogenation activity since the TOF for Pt-Ag/SiO...