About: Contribution of Fe and Protonic Sites in Calcined and Steamed ZSM-5 Zeolites to Oxidation of Benzene with N2O to Phenol and Selective Catalytic Reduction of NO with Propane to Nitrogen.

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About: Contribution of Fe and Protonic Sites in Calcined and Steamed ZSM-5 Zeolites to Oxidation of Benzene with N2O to Phenol and Selective Catalytic Reduction of NO with Propane to Nitrogen. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	NH4-(Fe)ZSM-5 zeolites with concentrations of Fe ranging from 30 to 2000 ppm, introduced into zeolites during their synthesis, either calcined in a dry oxygen at 720 K or steamed at 870 K in an oxygen stream with 30 % water vapor, were investigated in benzene oxidation with N2O to phenol and SCR-NOx to nitrogen. The concentration of Broensted and Lewis sites was determined by quantitative analysis of IR spectra of adsorbed d3-acetonitrile. The changes in Fe ion coordination were monitored by ESR spectra of Fe(III) ions. The Fe ions have been shown to control their performances in the above reactions, while the Al-related acid sites play only minor role. The steamed zeolites compared to calcined ones exhibited substantially higher activity in oxidation of benzene with N2O to phenol, while the SCR-NOx reaction to nitrogen was considerably suppressed. The steaming resulted in a dramatic decrease in concentration of Broensted sites, low concentration of Lewis sites. NH4-(Fe)ZSM-5 zeolites with concentrations of Fe ranging from 30 to 2000 ppm, introduced into zeolites during their synthesis, either calcined in a dry oxygen at 720 K or steamed at 870 K in an oxygen stream with 30 % water vapor, were investigated in benzene oxidation with N2O to phenol and SCR-NOx to nitrogen. The concentration of Broensted and Lewis sites was determined by quantitative analysis of IR spectra of adsorbed d3-acetonitrile. The changes in Fe ion coordination were monitored by ESR spectra of Fe(III) ions. The Fe ions have been shown to control their performances in the above reactions, while the Al-related acid sites play only minor role. The steamed zeolites compared to calcined ones exhibited substantially higher activity in oxidation of benzene with N2O to phenol, while the SCR-NOx reaction to nitrogen was considerably suppressed. The steaming resulted in a dramatic decrease in concentration of Broensted sites, low concentration of Lewis sites. (en)
Title	Contribution of Fe and Protonic Sites in Calcined and Steamed ZSM-5 Zeolites to Oxidation of Benzene with N2O to Phenol and Selective Catalytic Reduction of NO with Propane to Nitrogen. Contribution of Fe and Protonic Sites in Calcined and Steamed ZSM-5 Zeolites to Oxidation of Benzene with N2O to Phenol and Selective Catalytic Reduction of NO with Propane to Nitrogen. (en)
skos:prefLabel	Contribution of Fe and Protonic Sites in Calcined and Steamed ZSM-5 Zeolites to Oxidation of Benzene with N2O to Phenol and Selective Catalytic Reduction of NO with Propane to Nitrogen. Contribution of Fe and Protonic Sites in Calcined and Steamed ZSM-5 Zeolites to Oxidation of Benzene with N2O to Phenol and Selective Catalytic Reduction of NO with Propane to Nitrogen. (en)
skos:notation	RIV/61388955:_____/03:54030181!RIV/2004/AV0/A54004/N
http://linked.open.../vavai/riv/strany	1805;1818
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA4040007), Z(AV0Z4040901)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Kubánek, Petr Wichterlová, Blanka Sobalík, Zdeněk Čapek, Libor
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 fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	602127
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/03:54030181
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	FeH-ZSM-5; N2O oxidation of benzene; Fe-zeolites (en)
http://linked.open.../riv/klicoveSlovo	FeH-ZSM-5 N2O oxidation of benzene Fe-zeolites
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[127D9D8CC0C1]
http://linked.open...i/riv/nazevZdroje	Collection of Czechoslovak Chemical Communications
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	4 (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...vavai/riv/projekt	Selective oxidation of hydrocarbons catalysed by Me-O/zeolite systems
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	68
http://linked.open...iv/tvurceVysledku	Sobalík, Zdeněk Wichterlová, Blanka Čapek, Libor Kubánek, Petr
http://linked.open...n/vavai/riv/zamer	Objasňování zákonitostí vztahů struktury a vlastností - zejména dynamiky a chemické reaktivity - látek a molekulárních systémů
issn	0010-0765
number of pages	14 (xsd:int)

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