Acoustic vibrations of amorphous and crystalline ZrO2–TiO2 nanoparticles

Ivanda, Mile; Car, Diana; Mikac, Lara; Ristić, Davor; Ðerek, Vedran; Djerdj, Igor; Štefanić, Goran; Musić, Svetozar

doi:10.1016/j.molstruc.2014.05.055

Pregled bibliografske jedinice broj: 713551

Acoustic vibrations of amorphous and crystalline ZrO2–TiO2 nanoparticles

Ivanda, Mile; Car, Diana; Mikac, Lara; Ristić, Davor; Ðerek, Vedran; Djerdj, Igor; Štefanić, Goran; Musić, Svetozar

Acoustic vibrations of amorphous and crystalline ZrO2–TiO2 nanoparticles // Journal of molecular structure, 1073 (2014), 119-124 doi:10.1016/j.molstruc.2014.05.055 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 713551 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Acoustic vibrations of amorphous and crystalline ZrO2–TiO2 nanoparticles

Autori
Ivanda, Mile ; Car, Diana ; Mikac, Lara ; Ristić, Davor ; Ðerek, Vedran ; Djerdj, Igor ; Štefanić, Goran ; Musić, Svetozar

Izvornik
Journal of molecular structure (0022-2860) 1073 (2014); 119-124

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

Ključne riječi
acoustic vibrations; amorphous nanoparticles; low frequency Raman spectroscopy

Sažetak
Acoustic vibrational modes of ZrO2–TiO2 nanoparticles (ZT) have been observed and analyzed by means of low-frequency Raman spectroscopy (LFRS). The low-frequency Raman peak has been observed in the spectra of amorphous as well as of crystalline ZT nanoparticles. The results obtained by the LFRS have been compared to the results obtained by high-resolution transmission electron microscopy (HRTEM). After the method has been tested, the LFRS has been used to investigate the influence of the amount of dopant (Ti4+) and the annealing temperature on size distributions of the ZT nanoparticles. The observed reduction of the particles’ growth- rate with Ti doping was ascribed with increase of defects in nanoparticles. Also, a discontinuity in the particles’ growth-rate at the temperatures between 500 C and 600 C was observed. It is at these temperatures that the phase transition from amorphous to nanocrystalline phase occurs.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

Napomena
Molecular Spectroscopy – An Interdisciplinary Approach — Prof. Simion Simon Honor Issue.

POVEZANOST RADA

Projekti:
098-0982904-2898 - Fizika i primjena nanostruktura i volumne tvari (Ivanda, Mile, MZOS ) ( CroRIS)
098-0982904-2952 - Sinteza i mikrostruktura metalnih oksida i oksidnih stakala (Ristić, Mira, MZOS ) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Goran Štefanić (autor)