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Pregled bibliografske jedinice broj: 74900

Raman spectroscopy of ball-milled TiO2.


Gajović, Andreja; Stubičar, Mirko; Ivanda, Mile; Furić, Krešimir
Raman spectroscopy of ball-milled TiO2. // Journal of Molecular Structure, 563 (2001), 2; 315-320 (međunarodna recenzija, članak, znanstveni)


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Naslov
Raman spectroscopy of ball-milled TiO2.

Autori
Gajović, Andreja ; Stubičar, Mirko ; Ivanda, Mile ; Furić, Krešimir

Izvornik
Journal of Molecular Structure (0022-2860) 563 (2001), 2; 315-320

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

Ključne riječi
Raman. Tio2. Ball-milling. Phase transition. Nano-particle.

Sažetak
Raman spectroscopy was applied to study structural and dimensional changes during high-energy ball milling of TiO2 anatase. Milling was performed for up to 10 h using two different sets of grinding tools (wolfram carbide (WC) and agate), The diminution of the TiO2 particle to nanometric size was monitoring by low-frequency Raman spectroscopy. The nanometric sizes were confirmed by transmission electron microscopy (TEM). After short milling time by WC the bands of high-pressure TiO2 II phase (alpha -PbO2 structure) were detected in Raman spectrum. Prolonged milling time was needed for transformation to rutil. When milling was performed by agate, the time necessary for both phase transitions was longer, presumably because of lower ball-to-powder weight ratio. The low-frequency Raman band of the prolonged milled samples was broad, which suggests the wide dispersion in nanoparticle dimensions. The position of the low-frequency band in longer-milled samples indicated dimensions smaller than 20 nm, since the diameter of the particle is inversely proportional to the low-frequency mode of the spherical particles. These results were in agreement with the TEM results.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekt / tema
00980303
119495

Ustanove
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Krešimir Furić (autor)

Avatar Url Mile Ivanda (autor)

Avatar Url Andreja Gajović (autor)

Avatar Url Mirko Stubičar (autor)

Citiraj ovu publikaciju

Gajović, Andreja; Stubičar, Mirko; Ivanda, Mile; Furić, Krešimir
Raman spectroscopy of ball-milled TiO2. // Journal of Molecular Structure, 563 (2001), 2; 315-320 (međunarodna recenzija, članak, znanstveni)
Gajović, A., Stubičar, M., Ivanda, M. & Furić, K. (2001) Raman spectroscopy of ball-milled TiO2.. Journal of Molecular Structure, 563 (2), 315-320.
@article{article, year = {2001}, pages = {315-320}, keywords = {Raman. Tio2. Ball-milling. Phase transition. Nano-particle.}, journal = {Journal of Molecular Structure}, volume = {563}, number = {2}, issn = {0022-2860}, title = {Raman spectroscopy of ball-milled TiO2.}, keyword = {Raman. Tio2. Ball-milling. Phase transition. Nano-particle.} }

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:


  • Chemical Abstracts