Platinum on carbonaceous supports for glycerol hydrogenolysis: Support effect (Articolo in rivista)

Type
Label
  • Platinum on carbonaceous supports for glycerol hydrogenolysis: Support effect (Articolo in rivista) (literal)
Anno
  • 2015-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jcat.2015.03.003 (literal)
Alternative label
  • Oberhauser, Werner; Evangelisti, Claudio; Jumde, Ravindra P; Psaro, Rinaldo; Vizza, Francesco; Bevilacqua, Manuela; Filippi, J.; Machado, Bruno F.; Serp, Philippe (2015)
    Platinum on carbonaceous supports for glycerol hydrogenolysis: Support effect
    in Journal of catalysis (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Oberhauser, Werner; Evangelisti, Claudio; Jumde, Ravindra P; Psaro, Rinaldo; Vizza, Francesco; Bevilacqua, Manuela; Filippi, J.; Machado, Bruno F.; Serp, Philippe (literal)
Pagina inizio
  • 111 (literal)
Pagina fine
  • 117 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 325 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • ICCOM-CNR ISTM-CNR Laboratoire de Chimie de Coordination, Univeritè de Toulouse (literal)
Titolo
  • Platinum on carbonaceous supports for glycerol hydrogenolysis: Support effect (literal)
Abstract
  • Metal vapor synthesis (MVS) technique was applied to generate Pt-nanoparticles of different size (< 1.3 nm and 2.5 nm) deposited onto carbonaceous supports, mainly characterized by a different surface area. The supported catalysts were employed in the glycerol hydrogenolysis reaction carried out under basic reaction conditions at 433 and 453 K to obtain 1,2-propanediol as the main liquid product. Comparison of the composition of the liquid- and gas-phase products obtained by the different catalysts showed a clear dependence of aqueous-phase reforming, water-gas shift reaction activity as well as 1,2-propanediol chemoselectivity on the degree of Pt-sintering occurring on different carbon supports. High resolution transmission electron microscopic and X-ray powder diffraction studies carried out on as-synthesized and recovered heterogeneous catalysts provided clear evidences that a high surface area carbon support, such as Ketjen Black EC-600JD, notably retards nanoparticle aggregation. (literal)
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