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Modified Aqueous Sol-Gel Route towards Complex Metal Oxides Containing Tungsten


Bijelić, Jelena; Marković, Berislav; Stanković, Anamarija; Matasović, Brunislav; Kovač-Andrić, Elvira; Đorđević, Tamara; Bijelić, Mirjana; Djerdj, Igor
Modified Aqueous Sol-Gel Route towards Complex Metal Oxides Containing Tungsten // Book of Abstracts 24th Conference of the Serbian Crystallographic Society / Zarić, Snežana ; Medaković, Vesna (ur.).
Beograd: Serbian Crystallographic Society, 2017. str. 36-37 (poster, međunarodna recenzija, sažetak, znanstveni)


Naslov
Modified Aqueous Sol-Gel Route towards Complex Metal Oxides Containing Tungsten

Autori
Bijelić, Jelena ; Marković, Berislav ; Stanković, Anamarija ; Matasović, Brunislav ; Kovač-Andrić, Elvira ; Đorđević, Tamara ; Bijelić, Mirjana ; Djerdj, Igor

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

Izvornik
Book of Abstracts 24th Conference of the Serbian Crystallographic Society / Zarić, Snežana ; Medaković, Vesna - Beograd : Serbian Crystallographic Society, 2017, 36-37

ISBN
978-86-912959-3-6

Skup
24th Conference of the Serbian Crystallographic Society

Mjesto i datum
Vršac, Srbija, 22-24.06.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Citrate route ; ferroics ; perovskites ; sol-gel methods ; nanoparticles

Sažetak
Ferromagnetism and ferroelectricity are essential in numerous aspects of modern technology wherefore a need for synthesizing materials which have these properties appears. The main goal of this research is synthesis of complex perovskite nanoparticles with A2B2WO9 (A=earthalkali metal, B=transition metal) structure type by using specially modified sol- gel method reducing the time needed employing solid-state methods. Nanoparticles of Sr3Fe2WO9 and Ba3Fe2WO9 have been synthesized using modified Pechini route with citric acid solution at pH=5 (using concentrated ammonia solution), nitrate salts of strontium and barium and ammonium tungstate. Obtained powder has been calcined in a two-step process at different temperatures. These materials have been extensively studied using powder X-Ray Diffraction (PXRD), FT-IR spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy-dispersive X-ray diffraction spectroscopy (EDX). As obtained results have revealed that synthesize materials are 96 wt % pure and their average crystallite size has remained in nanometer range (15 nm to 27 nm) despite the high calcination temperatures.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2016-06-3115 - Istraživanje složenih multiferoičnih materijala pripravljenih metodama otopinske kemije (Igor Đerđ, )

Ustanove
Prirodoslovno-matematički fakultet, Zagreb,
Sveučilište u Osijeku - Odjel za kemiju