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Pregled bibliografske jedinice broj: 392189

Formation and characterization of nanosize α -Rh2O3 particles


Musić, Svetozar; Šarić, Ankica; Popović, Stanko; Ivanda, Mile
Formation and characterization of nanosize α -Rh2O3 particles // Journal of molecular structure, 924-926 (2009), 221-224 doi:10.1016/j.molstruc.2008.10.017 (međunarodna recenzija, članak, znanstveni)


Naslov
Formation and characterization of nanosize α -Rh2O3 particles

Autori
Musić, Svetozar ; Šarić, Ankica ; Popović, Stanko ; Ivanda, Mile

Izvornik
Journal of molecular structure (0022-2860) 924-926 (2009); 221-224

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

Ključne riječi
α -Rh2O3 ; XRPD ; FT-IR ; Raman ; FE-SEM

Sažetak
Amorphous rhodium (hydrous)oxide precursor was prepared from Rh(NO3)3 aqueous solution using NH4OH solution as a precipitating agent. The precipitate was subsequently washed, dried at 60°C, then heated in air atmosphere up to 650°C. Samples were characterised by XRPD, FT-IR, RAMAN, FE-SEM and EDS. The XRPD of sample prepared at 400°C showed a broad and intensive peak, which can be assigned to the amorphous nature of this sample. The peak was positioned at Bragg angles corresponding to the prominent peaks of α -Rh2O3. For the same sample the FT-IR spectrum showed one very broad band centred at 544 cm-1. On the other hand, the Raman spectrum of the same sample showed broad peaks at 268, 411, and 556 cm-1, which can be assigned to poorly crystallized α -Rh2O3. The Raman spectrum of the sample prepared at 650°C showed bands at 276, 422, 568 and 610 cm-1, which can be assigned to α -Rh2O3 particles. The sample prepared at 500°C also contained RhO2 as an intermediate phase. FE-SEM images showed a gradual increase in size of α -Rh2O3 particles (in the nanometer range), prepared from 400 to 650°C.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

Napomena
Rad je prezentiran na XXIX European Congress on Molecular Spectroscopy : Molecular Spectroscopy and Molecular Structure 2008 održanom od 31.08.-05.09.2008., Opatija, Hrvatska.



POVEZANOST RADA


Projekt / tema
098-0982904-2898 - Fizika i primjena nanostruktura i volumne tvari (Mile Ivanda, )
098-0982904-2952 - Sinteza i mikrostruktura metalnih oksida i oksidnih stakala (Mira Ristić, )
119-0982886-1009 - Struktura i svojstva posebnih nanomaterijala dobivenih suvremenim tehnikama (Antun Tonejc, )

Ustanove
Institut "Ruđer Bošković", 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:


  • CA Search (Chemical Abstracts)


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