Preparation of calcium plumbate via different route

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00021540" target="_blank" >RIV/60461373:22310/09:00021540 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Preparation of calcium plumbate via different route
Original language description
Calcium plumbate Ca2PbO4 was prepared by sol-gel methods (Pechini complex route with two varieties and water soluble polymer method) and by solid state reaction. The sol-gel prepared samples contained calcium plumbate as the only one phase as early as after 2 h annealing at 800 degrees C. Phase composition was detected by XRD measurement and by Raman spectroscopy. The next annealing at 800 degrees C for 24 h induced weak Pb losses displayed by present CaO (according to phase equilibrium) and confirmed by XRF measurement. The Pb losses were smaller for the sol-gel prepared samples probably due to earlier formation of Ca2PbO4. Microstructure and grain size were also established. Sol-gel prepared samples had regularly distributed grains with a small distribution interval with median value in order of 1 mu m. Differences in microstructure of solid state and sol-gel samples are presented on SEM micrographs.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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