About: Fe(III)-modified montmorillonite and bentonite: synthesis, chemical and UV-Vis spectral characterization, arsenic sorption, and catalysis of oxidative dehydrogenation of propane

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About: Fe(III)-modified montmorillonite and bentonite: synthesis, chemical and UV-Vis spectral characterization, arsenic sorption, and catalysis of oxidative dehydrogenation of propane Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	V připravených materiálech byly identifikovány formy Fe(III), především metodami UV-Vis spektroskopie, voltametrie mikročástic a chemické extrakce Fe(III) pomocí Ni-edta, byla zkoumána jejich tepelná stabilita pomocí HT-XRD a zjištěna jejich výborná sorpční schopnost zejména k arzeničnanu a nepříliš dobré katalytické schopnosti při reakcích propanu. (cs) Two major species were identified in Fe-treated montmorillonite: monomeric or dimeric hydroxoaqua cations .Form II behaves similarly to hydrous ferric oxides, but its thermal crystallization to hematite is postponed to 500–600 grad C. The Fe3+ cations in the interlayer space are much less thermally stable than Al pillars in pillared interlayered clays (PILCs). Form I is more active in oxidative dehydrogenation of propane, while form II is the active species in sorption of As and the non-specific combustion of propane. To produce only form II by the treatment of montmorillonite with Fe3+, its load must be kept below 20 wt. percent; otherwise the usual hydrous ferric oxides are formed. Two major species were identified in Fe-treated montmorillonite: monomeric or dimeric hydroxoaqua cations .Form II behaves similarly to hydrous ferric oxides, but its thermal crystallization to hematite is postponed to 500–600 grad C. The Fe3+ cations in the interlayer space are much less thermally stable than Al pillars in pillared interlayered clays (PILCs). Form I is more active in oxidative dehydrogenation of propane, while form II is the active species in sorption of As and the non-specific combustion of propane. To produce only form II by the treatment of montmorillonite with Fe3+, its load must be kept below 20 wt. percent; otherwise the usual hydrous ferric oxides are formed. (en)
Title	Fe(III)-modified montmorillonite and bentonite: synthesis, chemical and UV-Vis spectral characterization, arsenic sorption, and catalysis of oxidative dehydrogenation of propane Montmorillonit a bentonit modifikovaný Fe(III): příprava, chemická a UV-Vis spektrální charakterizace, sorpce arzénu a katalýza oxidační dehydrogenace propanu (cs) Fe(III)-modified montmorillonite and bentonite: synthesis, chemical and UV-Vis spectral characterization, arsenic sorption, and catalysis of oxidative dehydrogenation of propane (en)
skos:prefLabel	Fe(III)-modified montmorillonite and bentonite: synthesis, chemical and UV-Vis spectral characterization, arsenic sorption, and catalysis of oxidative dehydrogenation of propane Montmorillonit a bentonit modifikovaný Fe(III): příprava, chemická a UV-Vis spektrální charakterizace, sorpce arzénu a katalýza oxidační dehydrogenace propanu (cs) Fe(III)-modified montmorillonite and bentonite: synthesis, chemical and UV-Vis spectral characterization, arsenic sorption, and catalysis of oxidative dehydrogenation of propane (en)
skos:notation	RIV/61388980:_____/07:00082031!RIV07-GA0-61388980
http://linked.open.../vavai/riv/strany	165;176
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/04/0221), P(IAA3032401), P(IAA401250701), Z(AV0Z20410507), Z(AV0Z40320502)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Grygar, Tomáš Hradil, David Bezdička, Petr
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 anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	421797
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/07:00082031
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	As sorption; Fe-montmorillonite; Fe-bentonite (en)
http://linked.open.../riv/klicoveSlovo	As sorption Fe-bentonite Fe-montmorillonite
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[2B1900D74CD2]
http://linked.open...i/riv/nazevZdroje	Clays and Clay Minerals
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Structure, electrical and magnetic properties of nanocrystalline materials composed of carbon and 3d transition metals Baseline characterisation of expandable clay structures from Czech deposits and their interactions in solutions Modified aluminosilicates as effective nanosorbents of arsenic, antimony and selenium oxyanions: mechanism and kinetics of surface processes
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	55
http://linked.open...iv/tvurceVysledku	Bezdička, Petr Grygar, Tomáš Hradil, David Schneeweiss, Oldřich Čapek, L. Doušová, B.
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí
issn	0009-8604
number of pages	12 (xsd:int)

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