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Inverse spinel structure in cobalt doped gahnite


Popović, Jasminka; Tkalčec, Emilija; Gržeta, Biserka; Kurajica, Stanislav; Rakvin, Boris
Inverse spinel structure in cobalt doped gahnite // American mineralogist, 94 (2009), 5; 771-776 (međunarodna recenzija, članak, znanstveni)


Naslov
Inverse spinel structure in cobalt doped gahnite

Autori
Popović, Jasminka ; Tkalčec, Emilija ; Gržeta, Biserka ; Kurajica, Stanislav ; Rakvin, Boris

Izvornik
American mineralogist (0003-004X) 94 (2009), 5; 771-776

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Gahnite; spinel structure; X-ray powder diffraction; Rietveld method

Sažetak
Powder ZnAl2O4 (gahnite) samples doped with 0-100 at% Co were obtained by a sol-gel technique. X-ray powder diffraction was used to characterize the samples. Gahnite samples were cubic with spinel-type structure, space group Fd-3m. Cobalt doping caused the nonuniform increase of unit-cell parameter. The structure of gahnite samples was refined by the Rietveld method. Location of Co2+ was performed by the EPR spectroscopy. Cobalt doping of gahnite induced the inverse spinel structure already for 4 at% Co, inversion parameter increased with Co2+ doping level. Metal-oxide distances in the (Al, Co)O6 octahedra dominantly influenced the unit-cell parameter of Co-doped gahnite.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Kemijsko inženjerstvo



POVEZANOST RADA


Projekt / tema
098-0982886-2893 - Dopirani optoelektronički i keramički nanomaterijali (Biserka Gržeta, )
098-0982915-2939 - Molekulska struktura i dinamika sustava s paramagnetskim česticama (Marina Ilakovac-Kveder, )
125-1252970-2981 - Keramički nanokompoziti dobiveni sol-gel postupkom (Stanislav Kurajica, )

Ustanove
Institut "Ruđer Bošković", Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • INSPEC