Počet záznamů: 1

Effect of hydrothermal treatment on properties of Ni-Al layered double hydroxides and related mixed oxides

SYSNO ASEP	0323573
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Effect of hydrothermal treatment on properties of Ni-Al layered double hydroxides and related mixed oxides
Překlad názvu	Vliv hydrotermálního zpracování na vlastnosti Ni-Al LDH a příslušných směsných oxidů
Tvůrce(i)	Kovanda, F. (CZ) Rojka, T. (CZ) Bezdička, Petr (UACH-T)_{SAI, RID, ORCID} Jirátová, Květa (UCHP-M)_{RID, ORCID, SAI} Obalová, L. (CZ) Pacultová, K. (CZ) Bastl, Zdeněk (UFCH-W)_{RID, ORCID} Grygar, Tomáš (UACH-T)
Zdroj.dok.	Journal of Solid State Chemistry. - : Elsevier - ISSN 0022-4596 Roč. 182, č. 1 (2009), s. 27-36
Poč.str.	10 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	layered double hydroxides ; hydrotalcite-like compounds ; thermal decomposition
Vědní obor RIV	CA - Anorganická chemie
CEP	GA104/07/1400 GA ČR - Grantová agentura ČR
CEZ	AV0Z40320502 - UACH-T (2005-2011)
	AV0Z40720504 - UCHP-M (2005-2011)
	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000262546200004
DOI	10.1016/j.jssc.2008.09.014
Anotace	The Ni-Al layered double hydroxides (LDHs) with Ni/Al molar ratio of 2, 3, and 4 were prepared by coprecipitation and treated under hydrothermal conditions at 180 °C. Hydrothermal treatment increased significantly the crystallite size of coprecipitated samples. Gradual crystallization of NiO-like mixed oxide was observed at higher temperatures. Hydrothermal treatment improved thermal stability of the Ni2Al and Ni3Al LDHs but only a slight effect of hydrothermal treatment was observed with the Ni4Al sample. Hydrothermal aging of the LDHs resulted in decreasing content of the amorphous component and enhanced substitution of Al cations into NiO-like structure. The hydrothermally treated samples also exhibited a worse reducibility of Ni2+ components and an increase in pore size with increasing time of hydrothermal aging. The hydrothermal treatment of LDH precursor significantly improved the catalytic activity of Ni2Al mixed oxides in N2O decomposition.
Pracoviště	Ústav anorganické chemie
Kontakt	Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931
Rok sběru	2009

Počet záznamů: 1