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Pregled bibliografske jedinice broj: 950011

Zbornik radova

Autori: Bijelić, Jelena; Marković, Berislav; Stanković, Anamarija; Matasović, Brunislav; Kovač-Andrić, Elvira; Đorđević, Tamara; Bijelić, Mirjana; Djerdj, Igor
Naslov: Modified Aqueous Sol-Gel Route towards Complex Metal Oxides Containing Tungsten
Izvornik: Book of Abstracts 24th Conference of the Serbian Crystallographic Society / Zarić, Snežana ; Medaković, Vesna (ur.). - Beograd : Serbian Crystallographic Society , 2017. 36-37.
Skup: 24th Conference of the Serbian Crystallographic Society
Mjesto i datum: Vršac, Srbija, 22-24.06.2017.
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.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: HRZZ-IP-2016-06-3115
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Fizika,Kemija
Puni text rada: 950011.book_of_abstract_za_crosbi.pdf (tekst priložen 6. Kol. 2018. u 09:43 sati)
Upisao u CROSBI: Jelena Bijelic (jelena.bijelic@kemija.unios.hr), 6. Kol. 2018. u 09:43 sati



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