CobaltMaghrebV1, PascalFrancis, Corpus, bibRecord, 000133

Influence of the Co/Al ratio and the temperature of thermal treatment on cobalt speciation and catalytic properties of Co-ZSM-5 prepared by solid-state ion exchange

Identifieur interne : 000133 ( PascalFrancis/Corpus ); précédent : 000132; suivant : 000134

Influence of the Co/Al ratio and the temperature of thermal treatment on cobalt speciation and catalytic properties of Co-ZSM-5 prepared by solid-state ion exchange

Auteurs : Mourad Mhamdi ; Sihem Khaddar-Zine ; Abdelhamid Ghorbel

Source :

Applied catalysis. A, General [ 0926-860X ] ; 2008.

RBID : Pascal:08-0235584

Descripteurs français

Pascal (Inist)
- Traitement thermique, Cobalt, Réaction catalytique, Tamis moléculaire, Etat solide, Echange ion, Réaction état solide, Spectrométrie EXAFS, Spectrométrie XANES, Ammonioxydation, Catalyse hétérogène, Zéolite ZSM5.

English descriptors

KwdEn :
- Ammoxidation, Catalytic reaction, Cobalt, EXAFS spectrometry, Heat treatment, Heterogeneous catalysis, Ion exchange, Molecular sieve, Solid state, Solid state reaction, XANES spectrometry.

Abstract

Physico-chemical and catalytic properties of cobalt-containing ZSM-5 zeolite prepared by solid-state ion exchange were compared as a function of both the Co/Al molar ratio and the temperature of thermal treatment. The catalysts were characterized by chemical analysis, XRD, N₂ BET, TEM/EDX, H₂ TPR, FTIR, XANES, EXAFS and TPD of NH₃. The preparation procedure results in the disappearance ofBrØnsted acid sites and the creation of new Lewis acid sites, as suggested by TPD of NH₃ and FTIR of pyridine adsorption. TEM/EDX shows that for a Co/Al ratio of 1/2, cobalt is present as exchanged ions in the zeolite and as oxide particles on the support; whilst for a Co/Al ratio of 1 or 3/2, a cobalt phyllosilicate phase is present at the outer surface of the zeolite. Catalyst prepared with the Co/Al ratio of 1 at 500 °C exhibits high activity and selectivity toward acetonitrile in the ammoxidation of ethane and ethylene.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A03		`1`		`@0 Appl. catal., A Gen.`
A05				`@2 337`
A06				`@2 1`
A08	`01`	`1`	`ENG`	`@1 Influence of the Co/Al ratio and the temperature of thermal treatment on cobalt speciation and catalytic properties of Co-ZSM-5 prepared by solid-state ion exchange`
A11	`01`	`1`		`@1 MHAMDI (Mourad)`
A11	`02`	`1`		`@1 KHADDAR-ZINE (Sihem)`
A11	`03`	`1`		`@1 GHORBEL (Abdelhamid)`
A14	`01`			`@1 Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, Campus Universitaire @2 2092 Tunis @3 TUN @Z 1 aut. @Z 2 aut. @Z 3 aut.`
A20				`@1 39-47`
A21				`@1 2008`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 18840A @5 354000183649850050`
A44				`@0 0000 @1 © 2008 INIST-CNRS. All rights reserved.`
A45				`@0 42 ref.`
A47	`01`	`1`		`@0 08-0235584`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Applied catalysis. A, General`
A66	`01`			`@0 NLD`
C01	`01`		`ENG`	@0 Physico-chemical and catalytic properties of cobalt-containing ZSM-5 zeolite prepared by solid-state ion exchange were compared as a function of both the Co/Al molar ratio and the temperature of thermal treatment. The catalysts were characterized by chemical analysis, XRD, N₂ BET, TEM/EDX, H₂ TPR, FTIR, XANES, EXAFS and TPD of NH₃. The preparation procedure results in the disappearance ofBrØnsted acid sites and the creation of new Lewis acid sites, as suggested by TPD of NH₃ and FTIR of pyridine adsorption. TEM/EDX shows that for a Co/Al ratio of 1/2, cobalt is present as exchanged ions in the zeolite and as oxide particles on the support; whilst for a Co/Al ratio of 1 or 3/2, a cobalt phyllosilicate phase is present at the outer surface of the zeolite. Catalyst prepared with the Co/Al ratio of 1 at 500 °C exhibits high activity and selectivity toward acetonitrile in the ammoxidation of ethane and ethylene.
C02	`01`	`X`		`@0 001C01A03`
C02	`02`	`X`		`@0 001C01I05A`
C03	`01`	`X`	`FRE`	`@0 Traitement thermique @5 01`
C03	`01`	`X`	`ENG`	`@0 Heat treatment @5 01`
C03	`01`	`X`	`SPA`	`@0 Tratamiento térmico @5 01`
C03	`02`	`X`	`FRE`	`@0 Cobalt @2 NC @5 02`
C03	`02`	`X`	`ENG`	`@0 Cobalt @2 NC @5 02`
C03	`02`	`X`	`SPA`	`@0 Cobalto @2 NC @5 02`
C03	`03`	`X`	`FRE`	`@0 Réaction catalytique @5 03`
C03	`03`	`X`	`ENG`	`@0 Catalytic reaction @5 03`
C03	`03`	`X`	`SPA`	`@0 Reacción catalítica @5 03`
C03	`04`	`X`	`FRE`	`@0 Tamis moléculaire @5 04`
C03	`04`	`X`	`ENG`	`@0 Molecular sieve @5 04`
C03	`04`	`X`	`SPA`	`@0 Tamiz molecular @5 04`
C03	`05`	`X`	`FRE`	`@0 Etat solide @5 05`
C03	`05`	`X`	`ENG`	`@0 Solid state @5 05`
C03	`05`	`X`	`SPA`	`@0 Estado sólido @5 05`
C03	`06`	`X`	`FRE`	`@0 Echange ion @5 06`
C03	`06`	`X`	`ENG`	`@0 Ion exchange @5 06`
C03	`06`	`X`	`SPA`	`@0 Cambio iónico @5 06`
C03	`07`	`X`	`FRE`	`@0 Réaction état solide @5 07`
C03	`07`	`X`	`ENG`	`@0 Solid state reaction @5 07`
C03	`07`	`X`	`SPA`	`@0 Reacción estado sólido @5 07`
C03	`08`	`X`	`FRE`	`@0 Spectrométrie EXAFS @5 08`
C03	`08`	`X`	`ENG`	`@0 EXAFS spectrometry @5 08`
C03	`08`	`X`	`SPA`	`@0 Espectrometría EXAFS @5 08`
C03	`09`	`X`	`FRE`	`@0 Spectrométrie XANES @5 09`
C03	`09`	`X`	`ENG`	`@0 XANES spectrometry @5 09`
C03	`09`	`X`	`SPA`	`@0 Espectrometría XANES @5 09`
C03	`10`	`X`	`FRE`	`@0 Ammonioxydation @5 10`
C03	`10`	`X`	`ENG`	`@0 Ammoxidation @5 10`
C03	`10`	`X`	`SPA`	`@0 Amonioxidación @5 10`
C03	`11`	`X`	`FRE`	`@0 Catalyse hétérogène @5 11`
C03	`11`	`X`	`ENG`	`@0 Heterogeneous catalysis @5 11`
C03	`11`	`X`	`SPA`	`@0 Catálisis heterogénea @5 11`
C03	`12`	`X`	`FRE`	`@0 Zéolite ZSM5 @4 INC @5 32`
C07	`01`	`X`	`FRE`	`@0 Métal transition @2 NC @5 12`
C07	`01`	`X`	`ENG`	`@0 Transition metal @2 NC @5 12`
C07	`01`	`X`	`SPA`	`@0 Metal transición @2 NC @5 12`
N21				`@1 154`
N44	`01`			`@1 OTO`
N82				`@1 OTO`

Format Inist (serveur)

NO :	PASCAL 08-0235584 INIST
ET :	Influence of the Co/Al ratio and the temperature of thermal treatment on cobalt speciation and catalytic properties of Co-ZSM-5 prepared by solid-state ion exchange
AU :	MHAMDI (Mourad); KHADDAR-ZINE (Sihem); GHORBEL (Abdelhamid)
AF :	Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, Campus Universitaire/2092 Tunis/Tunisie (1 aut., 2 aut., 3 aut.)
DT :	Publication en série; Niveau analytique
SO :	Applied catalysis. A, General; ISSN 0926-860X; Pays-Bas; Da. 2008; Vol. 337; No. 1; Pp. 39-47; Bibl. 42 ref.
LA :	Anglais
EA :	Physico-chemical and catalytic properties of cobalt-containing ZSM-5 zeolite prepared by solid-state ion exchange were compared as a function of both the Co/Al molar ratio and the temperature of thermal treatment. The catalysts were characterized by chemical analysis, XRD, N₂ BET, TEM/EDX, H₂ TPR, FTIR, XANES, EXAFS and TPD of NH₃. The preparation procedure results in the disappearance ofBrØnsted acid sites and the creation of new Lewis acid sites, as suggested by TPD of NH₃ and FTIR of pyridine adsorption. TEM/EDX shows that for a Co/Al ratio of 1/2, cobalt is present as exchanged ions in the zeolite and as oxide particles on the support; whilst for a Co/Al ratio of 1 or 3/2, a cobalt phyllosilicate phase is present at the outer surface of the zeolite. Catalyst prepared with the Co/Al ratio of 1 at 500 °C exhibits high activity and selectivity toward acetonitrile in the ammoxidation of ethane and ethylene.
CC :	001C01A03; 001C01I05A
FD :	Traitement thermique; Cobalt; Réaction catalytique; Tamis moléculaire; Etat solide; Echange ion; Réaction état solide; Spectrométrie EXAFS; Spectrométrie XANES; Ammonioxydation; Catalyse hétérogène; Zéolite ZSM5
FG :	Métal transition
ED :	Heat treatment; Cobalt; Catalytic reaction; Molecular sieve; Solid state; Ion exchange; Solid state reaction; EXAFS spectrometry; XANES spectrometry; Ammoxidation; Heterogeneous catalysis
EG :	Transition metal
SD :	Tratamiento térmico; Cobalto; Reacción catalítica; Tamiz molecular; Estado sólido; Cambio iónico; Reacción estado sólido; Espectrometría EXAFS; Espectrometría XANES; Amonioxidación; Catálisis heterogénea
LO :	INIST-18840A.354000183649850050
ID :	08-0235584

Links to Exploration step

Pascal:08-0235584

Le document en format XML

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<term>Heat treatment</term>
<term>Heterogeneous catalysis</term>
<term>Ion exchange</term>
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<term>Solid state reaction</term>
<term>XANES spectrometry</term>
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<term>Echange ion</term>
<term>Réaction état solide</term>
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<front><div type="abstract" xml:lang="en">Physico-chemical and catalytic properties of cobalt-containing ZSM-5 zeolite prepared by solid-state ion exchange were compared as a function of both the Co/Al molar ratio and the temperature of thermal treatment. The catalysts were characterized by chemical analysis, XRD, N<sub>2</sub>
 BET, TEM/EDX, H<sub>2</sub>
 TPR, FTIR, XANES, EXAFS and TPD of NH<sub>3</sub>
. The preparation procedure results in the disappearance ofBrØnsted acid sites and the creation of new Lewis acid sites, as suggested by TPD of NH<sub>3</sub>
 and FTIR of pyridine adsorption. TEM/EDX shows that for a Co/Al ratio of 1/2, cobalt is present as exchanged ions in the zeolite and as oxide particles on the support; whilst for a Co/Al ratio of 1 or 3/2, a cobalt phyllosilicate phase is present at the outer surface of the zeolite. Catalyst prepared with the Co/Al ratio of 1 at 500 °C exhibits high activity and selectivity toward acetonitrile in the ammoxidation of ethane and ethylene.</div>
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<fC01 i1="01" l="ENG"><s0>Physico-chemical and catalytic properties of cobalt-containing ZSM-5 zeolite prepared by solid-state ion exchange were compared as a function of both the Co/Al molar ratio and the temperature of thermal treatment. The catalysts were characterized by chemical analysis, XRD, N<sub>2</sub>
 BET, TEM/EDX, H<sub>2</sub>
 TPR, FTIR, XANES, EXAFS and TPD of NH<sub>3</sub>
. The preparation procedure results in the disappearance ofBrØnsted acid sites and the creation of new Lewis acid sites, as suggested by TPD of NH<sub>3</sub>
 and FTIR of pyridine adsorption. TEM/EDX shows that for a Co/Al ratio of 1/2, cobalt is present as exchanged ions in the zeolite and as oxide particles on the support; whilst for a Co/Al ratio of 1 or 3/2, a cobalt phyllosilicate phase is present at the outer surface of the zeolite. Catalyst prepared with the Co/Al ratio of 1 at 500 °C exhibits high activity and selectivity toward acetonitrile in the ammoxidation of ethane and ethylene.</s0>
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<s5>03</s5>
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<s5>03</s5>
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<s5>04</s5>
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<s5>05</s5>
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<s5>07</s5>
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<s5>07</s5>
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<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>EXAFS spectrometry</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Espectrometría EXAFS</s0>
<s5>08</s5>
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<s5>09</s5>
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<s5>09</s5>
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<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Ammonioxydation</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Ammoxidation</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Amonioxidación</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Catalyse hétérogène</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Heterogeneous catalysis</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Catálisis heterogénea</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Zéolite ZSM5</s0>
<s4>INC</s4>
<s5>32</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Métal transition</s0>
<s2>NC</s2>
<s5>12</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Transition metal</s0>
<s2>NC</s2>
<s5>12</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Metal transición</s0>
<s2>NC</s2>
<s5>12</s5>
</fC07>
<fN21><s1>154</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 08-0235584 INIST</NO>
<ET>Influence of the Co/Al ratio and the temperature of thermal treatment on cobalt speciation and catalytic properties of Co-ZSM-5 prepared by solid-state ion exchange</ET>
<AU>MHAMDI (Mourad); KHADDAR-ZINE (Sihem); GHORBEL (Abdelhamid)</AU>
<AF>Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, Campus Universitaire/2092 Tunis/Tunisie (1 aut., 2 aut., 3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Applied catalysis. A, General; ISSN 0926-860X; Pays-Bas; Da. 2008; Vol. 337; No. 1; Pp. 39-47; Bibl. 42 ref.</SO>
<LA>Anglais</LA>
<EA>Physico-chemical and catalytic properties of cobalt-containing ZSM-5 zeolite prepared by solid-state ion exchange were compared as a function of both the Co/Al molar ratio and the temperature of thermal treatment. The catalysts were characterized by chemical analysis, XRD, N<sub>2</sub>
 BET, TEM/EDX, H<sub>2</sub>
 TPR, FTIR, XANES, EXAFS and TPD of NH<sub>3</sub>
. The preparation procedure results in the disappearance ofBrØnsted acid sites and the creation of new Lewis acid sites, as suggested by TPD of NH<sub>3</sub>
 and FTIR of pyridine adsorption. TEM/EDX shows that for a Co/Al ratio of 1/2, cobalt is present as exchanged ions in the zeolite and as oxide particles on the support; whilst for a Co/Al ratio of 1 or 3/2, a cobalt phyllosilicate phase is present at the outer surface of the zeolite. Catalyst prepared with the Co/Al ratio of 1 at 500 °C exhibits high activity and selectivity toward acetonitrile in the ammoxidation of ethane and ethylene.</EA>
<CC>001C01A03; 001C01I05A</CC>
<FD>Traitement thermique; Cobalt; Réaction catalytique; Tamis moléculaire; Etat solide; Echange ion; Réaction état solide; Spectrométrie EXAFS; Spectrométrie XANES; Ammonioxydation; Catalyse hétérogène; Zéolite ZSM5</FD>
<FG>Métal transition</FG>
<ED>Heat treatment; Cobalt; Catalytic reaction; Molecular sieve; Solid state; Ion exchange; Solid state reaction; EXAFS spectrometry; XANES spectrometry; Ammoxidation; Heterogeneous catalysis</ED>
<EG>Transition metal</EG>
<SD>Tratamiento térmico; Cobalto; Reacción catalítica; Tamiz molecular; Estado sólido; Cambio iónico; Reacción estado sólido; Espectrometría EXAFS; Espectrometría XANES; Amonioxidación; Catálisis heterogénea</SD>
<LO>INIST-18840A.354000183649850050</LO>
<ID>08-0235584</ID>
</server>
</inist>
</record>

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Influence of the Co/Al ratio and the temperature of thermal treatment on cobalt speciation and catalytic properties of Co-ZSM-5 prepared by solid-state ion exchange

Influence of the Co/Al ratio and the temperature of thermal treatment on cobalt speciation and catalytic properties of Co-ZSM-5 prepared by solid-state ion exchange

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