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High surface area alpha-alumina preparation by using urban waste
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SYSNO ASEP 0341292 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název High surface area alpha-alumina preparation by using urban waste Tvůrce(i) Martín-Ruiz, M.M. (ES)
Pérez-Maqueda, L.A. (ES)
Cordero, T. (ES)
Balek, Vladimír (UACH-T)
Šubrt, Jan (UACH-T) SAI, RID
Murafa, Nataliya (UACH-T) RID, SAI
Pascual-Cosp, J. (ES)Zdroj.dok. Ceramics International. - : Elsevier - ISSN 0272-8842
Roč. 35, č. 6 (2009), s. 2111-2117Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova alpha-alumina preparation ; surface area ; urban waste Vědní obor RIV CA - Anorganická chemie CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000267387500002 DOI 10.1016/j.ceramint.2008.11.011 Anotace A new method for preparing high surface area a-alumina from urban waste is proposed. The method consists of the precipitation of a precursor that contains bohemite mixed with a linear polymer and subsequently the thermal decomposition of the precursor by heating in nitrogen and air to 1200 degrees C. The resulting a-alumina consists of nanocrystals of about 100 nm aggregated into larger particles with relatively high surface area (12 m(2) g(-1)) and a significant macropore volume of 0.545 cm(3) g. Methods of X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) were used to characterize microstructure of prepared materials. Results of differential thermal analysis, thermogravimetry and emanation thermal analysis characterized the thermal behaviour of alpha-alumina precursors. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2010
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