Supported platinum-zinc oxide core-shell nanoparticle catalysts for methanol steam reforming (Articolo in rivista)

Type
Label
  • Supported platinum-zinc oxide core-shell nanoparticle catalysts for methanol steam reforming (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c4ta04790g (literal)
Alternative label
  • Arroyo-Ramirez, Lisandra; Chen, Chen; Cargnello, Matteo; Murray, Christopher B.; Fornasiero, Paolo; Gorte, Raymond J. (2014)
    Supported platinum-zinc oxide core-shell nanoparticle catalysts for methanol steam reforming
    in Journal of Materials Chemistry A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Arroyo-Ramirez, Lisandra; Chen, Chen; Cargnello, Matteo; Murray, Christopher B.; Fornasiero, Paolo; Gorte, Raymond J. (literal)
Pagina inizio
  • 19509 (literal)
Pagina fine
  • 19514 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/content/articlelanding/2014/ta/c4ta04790g#!divAbstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 2 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 45 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Pennsylvania; University of Pennsylvania; University of Pennsylvania; Consiglio Nazionale delle Ricerche (CNR) (literal)
Titolo
  • Supported platinum-zinc oxide core-shell nanoparticle catalysts for methanol steam reforming (literal)
Abstract
  • Platinum-zinc oxide (Pt@ZnO) and palladium-zinc oxide (Pd@ZnO) core-shell nanoparticles were synthesized in solution using a method based on self-assembly and deposited onto a functionalized alumina (Si-Al2O3) support. TEM investigations of the samples confirm the formation of core-shell structures of approximately 6 nm of diameter following calcination to remove the ligands. In situ TEM and coulometric titration experiments suggest that Pt-Zn alloys are formed upon reduction and that these are highly tunable in size. While methanol steam reforming (MSR) measurements on conventional Pt/Al2O3 and Pd/Al2O3 catalysts show poor CO2 selectivities, a Pt (1 wt%)@ZnO (9 wt%)/Si-Al2O3 system showed comparable activity and selectivity for CO2 as a conventional Pt/ZnO catalyst, providing further indication that Pt@ZnO forms a Pt-Zn alloy upon reduction due to the intimate contact between the two materials. The Pd@ZnO/Si-Al2O3 exhibited lower CO2 selectivities than Pt@ZnO/Si-Al2O3. (literal)
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