Size controlled copper nanoparticles hosted in mesoporous silica matrix: Preparation and characterization (Articolo in rivista)

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Label
  • Size controlled copper nanoparticles hosted in mesoporous silica matrix: Preparation and characterization (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.apcatb.2012.07.022 (literal)
Alternative label
  • Alessandro Gallo, Tanya Tsoncheva, Marcello Marelli, Mihail Mihaylov, Momtchil Dimitrov, Vladimiro Dal Santo, Konstantin Hadjiivanov (2012)
    Size controlled copper nanoparticles hosted in mesoporous silica matrix: Preparation and characterization
    in Applied catalysis. B, Environmental (Print); ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Alessandro Gallo, Tanya Tsoncheva, Marcello Marelli, Mihail Mihaylov, Momtchil Dimitrov, Vladimiro Dal Santo, Konstantin Hadjiivanov (literal)
Pagina inizio
  • 161 (literal)
Pagina fine
  • 171 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Articolo risultato del Progetto CNR-BAS 2010/2012 \"Transition metal modified mesoporous oxides: preparation, characterization and application as catalysts for alcohols dehydrogenation\" - responsabile italiano Dr. Vladimiro Dal Santo. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0926337312003220 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 126 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute of Molecular Sciences and Technologies of the National Research Council, ISTM-CNR, Milano, Italy Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria (literal)
Titolo
  • Size controlled copper nanoparticles hosted in mesoporous silica matrix: Preparation and characterization (literal)
Abstract
  • A novel preparation strategy was performed to obtain uniform and size controlled, in a large scale, copper nanoparticles, hosted into mesoporous silica matrix. The method includes the initial deposition of finely dispersed copper nanoparticles, using a conventional incipient wetness impregnation of silica matrix with small amount of nitrate precursor and consecutive pretreatment in oxidation and reduction atmosphere. The further controlled growing of the loaded copper particles was performed in rotary bed reactor by step-wise deposition of copper over them by OMCVD techniques, using bis- (hexafluoroacetylacetonate) copper (II) hydrate as a precursor. A complex of physicochemical methods (TEM, Nitrogen physisorption, TPR and TPRD-MS measurements, UV-Vis and FTIR spectroscopy of adsorbed CO) was used for characterization of the samples. The catalytic properties of the obtained materials were investigated in methanol decomposition to CO and hydrogen. A mechanism of the copper particles growing was discussed. Size dependent effects of the redox and catalytic properties of the loaded copper particles which are strongly affected by their location in the silica porous structure are assumed. (literal)
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