Enhanced stability of catalytic membranes based on a porous thin Pd film on a ceramic support by forming a Pd-Ag interlayer (Articolo in rivista)

Type
Label
  • Enhanced stability of catalytic membranes based on a porous thin Pd film on a ceramic support by forming a Pd-Ag interlayer (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Abate S., Centi G., Perathoner S., Frusteri F. (2006)
    Enhanced stability of catalytic membranes based on a porous thin Pd film on a ceramic support by forming a Pd-Ag interlayer
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Abate S., Centi G., Perathoner S., Frusteri F. (literal)
Pagina inizio
  • 189 (literal)
Pagina fine
  • 197 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 118 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • Enhanced stability of catalytic membranes based on a porous thin Pd film on a ceramic support by forming a Pd-Ag interlayer (literal)
Abstract
  • Pd and Pd–Ag alloy porous thin film membranes on a ceramic á-Al2 O3 tubular membrane support have been characterized by SEM, XRD and TPR measurements and reactivity studies in the direct H2 O2 synthesis from H2 /O2. The brittleness of the Pd film due to formation of palladium-hydride in the presence of H2 diffusing through the membrane is a major problem, which causes a fast deactivation of the membrane with formation of pinholes and finally rupture of the thin film. The formation of an alloy with Ag prevents this problem, but decreases the catalytic performances in the synthesis of H2 O2. By preparing multilayer catalytic membranes with a Pd–Ag interlayer between the ceramic support and the final Pd thin film it is possible to couple high catalytic performances and good stability of the membrane. (literal)
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