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Pregled bibliografske jedinice broj: 261257

Synthesis and Characterization of Nanocrystalline Chromium and Iron Doped Titania


Djerdj, Igor; Niederberger, Markus; Ba, Jianhua; Antonietti, Markus
Synthesis and Characterization of Nanocrystalline Chromium and Iron Doped Titania // International Symposium on Inorganic Interfacial Engineering 2006
Stockholm, Švedska, 2006. (poster, međunarodna recenzija, sažetak, znanstveni)


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Naslov
Synthesis and Characterization of Nanocrystalline Chromium and Iron Doped Titania

Autori
Djerdj, Igor ; Niederberger, Markus ; Ba, Jianhua ; Antonietti, Markus

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
International Symposium on Inorganic Interfacial Engineering 2006

Mjesto i datum
Stockholm, Švedska, 20.-21. 06. 2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Nonaqueous sol-gel; Titania; Electron microscopy

Sažetak
Titanium dioxide (TiO2) has received significant attention due to the broad applications into mainly optical, photovoltaic, and electrochromic devices as well as for reversible cathode materials in rechargeable batteries [1]. Moreover, upon doping with transition metal (e.g. Cr, Fe, V, Co and Ni), the ferromagnetic ordering can be introduced into titania host [2]. By applying nonaqueous sol-gel route, we synthesized 3% chromium and 3% iron doped titania. The Rietveld refinement of XRD powder patterns, combined high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED) and energy dispersive X-ray (EDX) analysis were employed for structural characterization of as-synthesized doped titania samples. The preliminary structural investigations have revealed that Cr-doped titania is amorphous, while Fe-doped titania is nanocrystalline with volume-weighted average grain size of 4 nm. TEM measurement has shown that the particles are very uniform in size and shape, mostly they are spherical. EDX analysis has confirmed the presence of Cr and Fe into titania matrix on the local scale. HRTEM measurement has revealed structural imperfections of investigated material, which is correlated with the high value of microstrain (0.8%) calculated from the line-broadening analysis of XRD pattern. [1] J. Moser, M. Grätzel, R. Gallay, Helvetica Chimica Acta, 70 (1987) 1596-1604. [2] N. H. Hong, J. Sakai, W. Prellier, Phys. Rev. B 70 (2004) 195204.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0119252

Ustanove
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Igor Đerđ (autor)

Citiraj ovu publikaciju

Djerdj, Igor; Niederberger, Markus; Ba, Jianhua; Antonietti, Markus
Synthesis and Characterization of Nanocrystalline Chromium and Iron Doped Titania // International Symposium on Inorganic Interfacial Engineering 2006
Stockholm, Švedska, 2006. (poster, međunarodna recenzija, sažetak, znanstveni)
Djerdj, I., Niederberger, M., Ba, J. & Antonietti, M. (2006) Synthesis and Characterization of Nanocrystalline Chromium and Iron Doped Titania. U: International Symposium on Inorganic Interfacial Engineering 2006.
@article{article, year = {2006}, keywords = {Nonaqueous sol-gel, Titania, Electron microscopy}, title = {Synthesis and Characterization of Nanocrystalline Chromium and Iron Doped Titania}, keyword = {Nonaqueous sol-gel, Titania, Electron microscopy}, publisherplace = {Stockholm, \v{S}vedska} }




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