Pt doping triggers growth of TiO2 nanorods: nanocomposite synthesis and gas-sensing properties (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Pt doping triggers growth of TiO2 nanorods: nanocomposite synthesis and gas-sensing properties (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1039/c2ce06690d (literal)

Alternative label

• Epifani, Mauro; Andreu, Teresa; Zamani, Reza; Arbiol, Jordi; Comini, Elisabetta; Siciliano, Pietro; Faglia, Guido; Morante, Joan R. (2012)
  Pt doping triggers growth of TiO2 nanorods: nanocomposite synthesis and gas-sensing properties
  in CrystEngComm (Camb., Online)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Epifani, Mauro; Andreu, Teresa; Zamani, Reza; Arbiol, Jordi; Comini, Elisabetta; Siciliano, Pietro; Faglia, Guido; Morante, Joan R. (literal)

Pagina inizio

• 3882 (literal)

Pagina fine

• 3887 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 14 (literal)

Rivista

• CrystEngComm (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 6 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 11 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Consiglio Nazionale delle Ricerche (CNR); University of Barcelona; IREC; Consejo Superior de Investigaciones Cientificas (CSIC); ICREA; University of Brescia (literal)

Titolo

• Pt doping triggers growth of TiO2 nanorods: nanocomposite synthesis and gas-sensing properties (literal)

Abstract

• TiO2 nanocrystals were prepared by solvothermal treatment in oleic acid at 250 degrees C of amorphous TiO2 nanoparticles. The latter were prepared by sol-gel processing in dodecylamine at 100 degrees C of starting solutions synthesized from TiCl4. For preparing Pt/TiO2 nanocomposites, with Pt/Ti nominal atomic ratio of 0.05, the required amount of Pt precursor was added to the amorphous TiO2 nanoparticles before heating at 250 degrees C. Control synthesis experiments, evaluated by X-ray diffraction and X-ray photoelectron spectroscopy showed Pt(acac)(2) as the best Pt precursor, and 250 degrees C as the optimum temperature for simultaneous TiO2 crystallization and efficient Pt nucleation. Transmission electron microscopy observations evidenced Pt nanocrystals dispersed in the surrounding TiO2 host, with a mean size of 4 nm. The TiO2 host was constituted of rod-shaped anatase nanocrystals. Comparison with pure TiO2 showed that the rod shape was favored by the presence of Pt species. As an example of application, the nanocomposites were used for preparing ethanol-sensing devices. The Pt addition remarkably improved the response with respect to pure TiO2 sensors, and electrical characterization of the sensors helped in establishing that the effect of Pt was due to spillover rather than electronic sensitization. (literal)

Prodotto di

• Institute for microelectronics and microsystems (IMM) (Istituto)

Autore CNR

• GUIDO FAGLIA (Unità di personale esterno)
• PIETRO ALEARDO SICILIANO (Unità di personale interno)
• ELISABETTA COMINI (Unità di personale esterno)
• MAURO SALVATORE EPIFANI (Unità di personale interno)

Incoming links:

Prodotto

• Institute for microelectronics and microsystems (IMM) (Istituto)

Autore CNR di

• GUIDO FAGLIA (Unità di personale esterno)
• PIETRO ALEARDO SICILIANO (Unità di personale interno)
• MAURO SALVATORE EPIFANI (Unità di personale interno)
• ELISABETTA COMINI (Unità di personale esterno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• CrystEngComm (Rivista)