Počet záznamů: 1
On preparation of nanocrystalline chromites by co-precipitation andautocombustion methods
- 1.
SYSNO ASEP 0448015 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název On preparation of nanocrystalline chromites by co-precipitation andautocombustion methods Tvůrce(i) Matulková, Irena (FZU-D) RID
Holec, Petr (UACH-T) SAI
Pacáková, Barbara (FZU-D) RID, ORCID
Kubíčková, Simona (FZU-D) RID
Mantlíková, Alice (FZU-D) RID
Plocek, Jiří (UACH-T) RID, ORCID, SAI
Němec, I. (CZ)
Nižňanský, D. (CZ)
Vejpravová, Jana (FZU-D) RID, ORCIDZdroj.dok. Materials Science and Engineering B-Advanced Functional Solid-State Materials. - : Elsevier - ISSN 0921-5107
Roč. 195, May (2015), s. 66-73Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova transition metal chromites ; nanocrystalline particles ; microstructural analysis ; vibrational spectroscopy Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEP GAP108/10/1250 GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 ; UACH-T - RVO:61388980 UT WOS 000351966000009 EID SCOPUS 84923783550 DOI 10.1016/j.mseb.2015.01.011 Anotace We present a comprehensive study on optimization of wet preparation routes yielding well-crystalline spinel chromite, ACr2O4 nanoparticles (A = Cu, Fe, Ni, Mn and Mg). The auto-combustion and co-precipitation methods in the presence of nitrate or chloride ions and kept under different atmospheres, followed by annealing of final products at different temperatures were tested. All samples were characterized by powder X-ray diffraction (PXRD) and vibrational spectroscopy in order to evaluate their phase composition, particle size and micro-strain. Selected samples were subjected to investigation by transmission electron microscopy (TEM). The degree of the particle crystallinity was estimated by relating the apparent crystallite size obtained from the PXRD analysis to the physical grain size observed by the TEM. Optimal conditions leading to single-phase and highly-crystalline chromite nanoparticles are proposed. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2016
Počet záznamů: 1