Indirect synthesis of Al2O3 via radiation- or photochemical formation of its hydrated precursors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00209051" target="_blank" >RIV/68407700:21340/14:00209051 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0025540813008349" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0025540813008349</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.materresbull.2013.10.005" target="_blank" >10.1016/j.materresbull.2013.10.005</a>

Result language
angličtina
Original language name
Indirect synthesis of Al2O3 via radiation- or photochemical formation of its hydrated precursors
Original language description
Gama-, theta- and alfa-modifications of aluminium oxide (alumina) were successfully prepared by calcination of precursor solid phase obtained by irradiation of clear aqueous solutions by UV light or electron beam. For the precipitate to form, formate anion must be present in the solution in sufficient concentration. According to X-ray diffraction, the precipitate was found to consist of either AlOOH or Al(OH)3, depending on the solution composition. The addition of hydrogen peroxide as a OH radical source and sensitizer markedly improved the efficiency of the preparation. Calcination of the dried precipitate at 500?800 °C produced highly porous gama-alumina with high specific surface area (ca. 150 m2/g). Samples were further investigated by means of scanning electron microscopy and specific surface area or porosity measurement. Possible applications of the material as sorbent or catalyst as well as a pure matrix for thermoluminescence dosimetry were briefly contemplated. Strong light-i
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
CH - Nuclear and quantum chemistry, photo chemistry
OECD FORD branch
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Project
<a href="/en/project/VG20132015132" target="_blank" >VG20132015132: Use of nanotechnology for minimization of radionuclide contamination of environment</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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