Nanostructured Co1-xNix(Sb1-yTey)3 skutterudites: Theoretical modeling, synthesis and thermoelectric properties (Articolo in rivista)

Type

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

Label

• Nanostructured Co1-xNix(Sb1-yTey)3 skutterudites: Theoretical modeling, synthesis and thermoelectric properties (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

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

• 10.1063/1.1852072 (literal)

Alternative label

• Stiewe C.; Bertini L.; Toprak M.; Christensen M.; Platzek D.; Williams S.; Gatti C.; Müller E.; Iversen B.B.; Muhammed M.; Rowe M. (2005)
  Nanostructured Co1-xNix(Sb1-yTey)3 skutterudites: Theoretical modeling, synthesis and thermoelectric properties
  in Journal of applied physics; AIP, American institute of physics, Melville, NY (Stati Uniti d'America)
  (literal)

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

• Stiewe C.; Bertini L.; Toprak M.; Christensen M.; Platzek D.; Williams S.; Gatti C.; Müller E.; Iversen B.B.; Muhammed M.; Rowe M. (literal)

Pagina inizio

• 044317-1 (literal)

Pagina fine

• 044317-7 (literal)

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

• 97 (literal)

Rivista

• Journal of applied physics (Rivista)

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

• 8 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Christian Stiewe: German Aerospace Center (DLR), Linder Hoehe, 51147 Cologne, Germany Luca Bertini: Istituto di Scienze e Tecnologie Molecolari (ISTM), Via Camillo Golgi 19, 20133 Milano, Italy Muhammet Toprak: Royal Institute of Technology (KTH), Stockholm, Sweden Mogens Christensen: University of Aarhus, Department of Chemistry, DK-8000 Aarhus C, Denmark Dieter Platzek: German Aerospace Center (DLR), Linder Hoehe, 51147 Cologne, Germany Simon Williams: NEDO Laboratory for Thermoelectric Engineering (NEDO), Cardiff, United Kingdom Carlo Gatti: Istituto di Scienze e Tecnologie Molecolari (ISTM), Via Camillo Golgi 19, 20133 Milano, Italy Eckhard Müller: German Aerospace Center (DLR), Linder Hoehe, 51147 Cologne, Germany Bo B. Iversen: University of Aarhus, Department of Chemistry, DK-8000 Aarhus C, Denmark Mamoun Muhammed: Royal Institute of Technology (KTH), Stockholm, Sweden Michael Rowe: NEDO Laboratory for Thermoelectric Engineering (NEDO), Cardiff, United Kingdom (literal)

Titolo

• Nanostructured Co1-xNix(Sb1-yTey)3 skutterudites: Theoretical modeling, synthesis and thermoelectric properties (literal)

Abstract

• The properties of Te-doped CosSb1-yTeyd3 and Te-Ni double-doped Co1-xNixsSb1-yTeyd3 nanostructured skutterudites were evaluated by means of x-ray powder diffraction, and transport properties measured on the synthesized samples have been compared with ab initio theoretical modeling. Theoretical optimal dopant contents have been evaluated according to the maximum value of the power factor, calculating the electronic transport properties from the ab initio material band structure using semiclassical Boltzmann transport theory. The samples have been synthesized by chemical alloying with Te substitution for Sb up to 2.5 at. % and Ni substitution for Co up to 2.0 at. %. X-ray powder diffraction has been performed on all samples to reveal information about phase purity and Rietveld refinement was performed for the phase composition and cell parameter. The thermoelectric properties of the resulting consolidates were investigated in a temperature range from 300 to 723 K using various measurement facilities.Astandardization and round robin program was started among the participating evaluation laboratories in order to ensure reliability of the data obtained. The significant reduction in thermal conductivity, when compared to highly annealed CoSb3, could be proved which is caused by the nanostructuring, resulting in a high concentration of grain boundaries. A combination of substitution levels for Ni and Te has been found resulting in the largest ZT value of 0.65 at 680 K among unfilled skutterudite materials. (literal)

Editore

• AIP, American institute of physics (Editore)

Prodotto di

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Nanoingegneria chimica: struttura, energetica e dinamica di nanosistemi per il controllo della reattività chimica (PM.P07.002.004) (Modulo)
• Nanoingegneria chimica ab-initio: struttura, legame e proprieta' di materiali di interesse tecnologico e dinamica di nanosistemi per il controllo della loro reattivita' chimica (PM.P07.002.003) (Modulo)

Autore CNR

• CARLO EDOARDO GATTI (Persona)

Incoming links:

Prodotto

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Nanoingegneria chimica: struttura, energetica e dinamica di nanosistemi per il controllo della reattività chimica (PM.P07.002.004) (Modulo)
• Nanoingegneria chimica ab-initio: struttura, legame e proprieta' di materiali di interesse tecnologico e dinamica di nanosistemi per il controllo della loro reattivita' chimica (PM.P07.002.003) (Modulo)

Autore CNR di

• CARLO EDOARDO GATTI (Persona)

Editore di

• AIP, American institute of physics (Editore)

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

• Journal of applied physics (Rivista)