J
2016
Sol-gel and sonochemically derived transition metal (Co, Ni, Cu, and Zn) chromites as pigments: A comparative study
GRAŽÉNAITÉ, Egle, Jiří PINKAS, Aldona BEGANSKIENE and Aivaras KAREIVA
Basic information
Original name
Sol-gel and sonochemically derived transition metal (Co, Ni, Cu, and Zn) chromites as pigments: A comparative study
Authors
GRAŽÉNAITÉ, Egle (440 Lithuania),
Jiří PINKAS (203 Czech Republic, guarantor, belonging to the institution), Aldona BEGANSKIENE (440 Lithuania) and Aivaras KAREIVA (440 Lithuania)
Edition
Ceramics International, OXFORD, Elsevier, 2016, 0272-8842
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
10402 Inorganic and nuclear chemistry
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.986
RIV identification code
RIV/00216224:14310/16:00090809
Organization unit
Faculty of Science
Keywords in English
Sol-gel process; Colour; Spinels; Sonochemical synthesis
Tags
International impact, Reviewed
V originále
Cobalt chromite based pigments Co1-xMxCr2O4 (M = Ni, Cu, and Zn) with different transition metal concentrations (0 <= x <= 1 with a step of 0.25) have been synthesized applying two aqueous synthesis approaches: sol-gel and sonochemical synthesis routes. The heat treatment of precursor powders was performed between 600 and 800 degrees C. XRD analysis of the obtained powders revealed that all samples fabricated by sol-gel method have crystallised in a spinel structure, whereas sonochemical synthesis of Ni chromite at lower calcination temperatures showed the formation of mixtures of oxides. In addition, the degree of crystallinity and shaping of sonochemically obtained compounds is lower than sol-gel derived products. The chromites with a higher nicicel concentration displayed green colour, while Cu substituted pigments were nearly black. The spinels with a higher Zn amount were yellowish green.
Links
ED1.1.00/02.0068, research and development project | Name: CEITEC - central european institute of technology |
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LQ1601, research and development project | Name: CEITEC 2020 (Acronym: CEITEC2020) | Investor: Ministry of Education, Youth and Sports of the CR |
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