About: Characterization of Activated Cu/Mg/Al Hydrotalcites and Their Catalytic Activity in Toluene Combustion.

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About: Characterization of Activated Cu/Mg/Al Hydrotalcites and Their Catalytic Activity in Toluene Combustion. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Five hydrotalcite-type compounds containing different amounts of Cu2+ and Mg2+ cations were prepared by coprecipitation method (the molar ratio Cu2+:Mg2+:Al3+ in brucite-like layers varied as follows: 0:4:2, 1:3:2, 2:2:2, 3:1:2, and 4:0:2). The products were characterized by XRD, TG and DTA measurements. The increasing content of Cu2+ decreased both the dehydration and decomposition temperatures. Extrudates prepared from the solids were calcined at different temperatures and the properties of the resulting materials (surface area, pore volume, TPR, surface basicity and acidity) were examined. Maximum of the Mg/Al hydrotalcite surface area was observed at 400 C, basicity at 450 C and acidity at 550 C. Incorporation of Cu2+ into brucite-like layers caused a substantial decrease in both basicity and acidity. Acidity rose with increasing amounts of copper in the layers and basicity went through a local minimum. An increase in the amount of magnesium in the precursors manifested itself in a decreased reduc Five hydrotalcite-type compounds containing different amounts of Cu2+ and Mg2+ cations were prepared by coprecipitation method (the molar ratio Cu2+:Mg2+:Al3+ in brucite-like layers varied as follows: 0:4:2, 1:3:2, 2:2:2, 3:1:2, and 4:0:2). The products were characterized by XRD, TG and DTA measurements. The increasing content of Cu2+ decreased both the dehydration and decomposition temperatures. Extrudates prepared from the solids were calcined at different temperatures and the properties of the resulting materials (surface area, pore volume, TPR, surface basicity and acidity) were examined. Maximum of the Mg/Al hydrotalcite surface area was observed at 400 C, basicity at 450 C and acidity at 550 C. Incorporation of Cu2+ into brucite-like layers caused a substantial decrease in both basicity and acidity. Acidity rose with increasing amounts of copper in the layers and basicity went through a local minimum. An increase in the amount of magnesium in the precursors manifested itself in a decreased reduc (en)
Title	Characterization of Activated Cu/Mg/Al Hydrotalcites and Their Catalytic Activity in Toluene Combustion. Characterization of Activated Cu/Mg/Al Hydrotalcites and Their Catalytic Activity in Toluene Combustion. (en)
skos:prefLabel	Characterization of Activated Cu/Mg/Al Hydrotalcites and Their Catalytic Activity in Toluene Combustion. Characterization of Activated Cu/Mg/Al Hydrotalcites and Their Catalytic Activity in Toluene Combustion. (en)
skos:notation	RIV/67985858:_____/01:27013059!RIV/2003/AV0/A27003/N
http://linked.open.../vavai/riv/strany	71;80
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z4072921)
http://linked.open...iv/cisloPeriodika	N/A
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Rymeš, Jan Jirátová, Květa
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	675371
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/01:27013059
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hyrotalcites; layered double hydroxides; thermal decomposition (en)
http://linked.open.../riv/klicoveSlovo	thermal decomposition layered double hydroxides hyrotalcites
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[264C48952B85]
http://linked.open...i/riv/nazevZdroje	Applied Clay Science
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2001
http://linked.open...v/svazekPeriodika	18
http://linked.open...iv/tvurceVysledku	Kovanda, F. Koloušek, D. Rymeš, Jan Jiratová, Květuše
http://linked.open...n/vavai/riv/zamer	Theoretical fundamentals of chemical processes: equilibrium and dynamic behavior of multiphase reacting systems
issn	0169-1317
number of pages	10 (xsd:int)

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