Počet záznamů: 1
Preparation of Silver-Montmorillonite Nanocomposites by Reduction with Formaldehyde and Borohydride
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SYSNO ASEP 0340426 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Preparation of Silver-Montmorillonite Nanocomposites by Reduction with Formaldehyde and Borohydride Tvůrce(i) Praus, P. (CZ)
Turicová, M. (CZ)
Klementová, Mariana (UACH-T) RID, SAI, ORCIDZdroj.dok. Journal of the Brazilian Chemical Society. - : Sociedade Brasileira de Quimica - ISSN 0103-5053
Roč. 20, č. 7 (2009), s. 1351-1357Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. BR - Brazílie Klíč. slova silver ; nanocomposites ; montmorillonite ; reduction Vědní obor RIV CA - Anorganická chemie CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000269440000021 Anotace Na-rich montmorillonite (MMT) was intercalated with silver cations, which were subsequently reduced with formaldehyde or sodium borohydride. The silver-montmorillonite nanocomposites were studied by UV-visible spectrometry, transmission electron microscopy (TEM) and X-ray diffractometry (XRD). The influence of different reducing agents on the dispersity and size of silver particles deposited on montmorillonite surface was investigated. The reduction with borohydride gives rise to uniformly dispersed silver particles with a narrow particle size distribution from 3 nm to 13 nm. Formaldehyde reduction forms unevenly dispersed particles with a much wider size distribution, ranging from 3 to 100 nm. In addition, some Ag2O particles were found among silver particles prepared with formaldehyde, likely as a result of incomplete reduction. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2010
Počet záznamů: 1