IndiumV3, Main, Repository, bibRecord, 010861

Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part I.-Acid-base properties

Identifieur interne : 010861 ( Main/Repository ); précédent : 010860; suivant : 010862

Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part I.-Acid-base properties

Auteurs : RBID : Pascal:01-0258232

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Catalyseur sur support, Gallium oxyde, Indium oxyde, Alumine, Préparation, Procédé sol gel, Caractérisation, Propriété surface, Site catalytique, Site adsorption, Site acide, Spectrométrie IR, Activité catalytique, Réaction catalytique, Isomérisation, Composé éthylénique, But-1-ène(3,3-diméthyl).

English descriptors

KwdEn :
- Acidic site, Adsorption site, Alumina, Catalyst activity, Catalytic reaction, Catalytic site, Characterization, Ethylenic compound, Experimental study, Gallium oxide, Indium oxide, Infrared spectrometry, Isomerization, Preparation, Sol gel process, Supported catalyst, Surface properties.

Abstract

Surface characterization of Al₂O₃, In₂O₃-Al₂O₂ and Ga₂O₃-Al₂O₂ prepared by sol-gel method was made focusing on the acid -base properties, Cyclohexanol conversion as a model reaction revealed that acid sites rather than basic sites are present predominantly on the surface. The presence of Lewis acid sites was confirmed by pyridine adsorption followed by Fourier transform infrared (FT-IR) spectroscopy. In addition, a certain amount of Brønsted acid sites were also revealed by the adsorption of 2,6-dimethylpyridine (DMP). From the adsorption of CO, it was found that the addition of Ga₂O₃ into alumina leads to a decrease of Lewis acid strength but to an increase of the number of sites, while In₂O₃ addition caused a global decrease of Lewis acidic properties of alumina. Using CO₂ as a probe to study the basicity, the number of surface basic sites on alumina was found to be decreased by the In₂O₃ and Ga₂O₃ additives, A good correlation between the catalytic activity for 3,3-dimethylbut-1-ene isomerisation and the surface acidity estimated by CO and DMP adsorption was supposed. The combination of model reactions and adsorption of specific probe molecules gives us detailed information concerning the surface acid base properties.

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Pascal:01-0258232

Le document en format XML

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<author><name sortKey="Joubert, Emmanuel" uniqKey="Joubert E">Emmanuel Joubert</name>
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<author><name sortKey="Menezo, Jean Christophe" uniqKey="Menezo J">Jean-Christophe Menezo</name>
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<author><name sortKey="Duprez, Daniel" uniqKey="Duprez D">Daniel Duprez</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Catalyse en Chimie Organique (LACCO), UMR 6503, CNRS-Université de Poitiers, 40 Avenue du Recteur Pineau</s1>
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<author><name sortKey="Barbier, Jacques" uniqKey="Barbier J">Jacques Barbier</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Catalyse en Chimie Organique (LACCO), UMR 6503, CNRS-Université de Poitiers, 40 Avenue du Recteur Pineau</s1>
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<author><name sortKey="Bion, Nicolas" uniqKey="Bion N">Nicolas Bion</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Catalyse et Spectrochimie, UMR 6506, CNRS-ISMRA, 6 Bd du Maréchal Juin</s1>
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<author><name sortKey="Daturi, Marco" uniqKey="Daturi M">Marco Daturi</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Catalyse et Spectrochimie, UMR 6506, CNRS-ISMRA, 6 Bd du Maréchal Juin</s1>
<s2>14050, Caen</s2>
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<author><name sortKey="Saussey, Jacques" uniqKey="Saussey J">Jacques Saussey</name>
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<author><name sortKey="Lavalley, Jean Claude" uniqKey="Lavalley J">Jean-Claude Lavalley</name>
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<settlement type="city">Caen</settlement>
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<author><name sortKey="Hamada, Hideaki" uniqKey="Hamada H">Hideaki Hamada</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>National Institute of Materials and Chemical Research, 1-1 Higashi</s1>
<s2>Tsukuba, Ibaraki, 305-8565</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
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</titleStmt>
<publicationStmt><idno type="inist">01-0258232</idno>
<date when="2001">2001</date>
<idno type="stanalyst">PASCAL 01-0258232 INIST</idno>
<idno type="RBID">Pascal:01-0258232</idno>
<idno type="wicri:Area/Main/Corpus">011102</idno>
<idno type="wicri:Area/Main/Repository">010861</idno>
</publicationStmt>
<seriesStmt><idno type="ISSN">1463-9076</idno>
<title level="j" type="abbreviated">PCCP, Phys. chem. chem. phys. : (Print)</title>
<title level="j" type="main">PCCP. Physical chemistry chemical physics : (Print)</title>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acidic site</term>
<term>Adsorption site</term>
<term>Alumina</term>
<term>Catalyst activity</term>
<term>Catalytic reaction</term>
<term>Catalytic site</term>
<term>Characterization</term>
<term>Ethylenic compound</term>
<term>Experimental study</term>
<term>Gallium oxide</term>
<term>Indium oxide</term>
<term>Infrared spectrometry</term>
<term>Isomerization</term>
<term>Preparation</term>
<term>Sol gel process</term>
<term>Supported catalyst</term>
<term>Surface properties</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Catalyseur sur support</term>
<term>Gallium oxyde</term>
<term>Indium oxyde</term>
<term>Alumine</term>
<term>Préparation</term>
<term>Procédé sol gel</term>
<term>Caractérisation</term>
<term>Propriété surface</term>
<term>Site catalytique</term>
<term>Site adsorption</term>
<term>Site acide</term>
<term>Spectrométrie IR</term>
<term>Activité catalytique</term>
<term>Réaction catalytique</term>
<term>Isomérisation</term>
<term>Composé éthylénique</term>
<term>But-1-ène(3,3-diméthyl)</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Surface characterization of Al<sub>2</sub>
O<sub>3</sub>
, In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>2</sub>
 and Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>2</sub>
 prepared by sol-gel method was made focusing on the acid -base properties, Cyclohexanol conversion as a model reaction revealed that acid sites rather than basic sites are present predominantly on the surface. The presence of Lewis acid sites was confirmed by pyridine adsorption followed by Fourier transform infrared (FT-IR) spectroscopy. In addition, a certain amount of Brønsted acid sites were also revealed by the adsorption of 2,6-dimethylpyridine (DMP). From the adsorption of CO, it was found that the addition of Ga<sub>2</sub>
O<sub>3</sub>
 into alumina leads to a decrease of Lewis acid strength but to an increase of the number of sites, while In<sub>2</sub>
O<sub>3</sub>
 addition caused a global decrease of Lewis acidic properties of alumina. Using CO<sub>2</sub>
 as a probe to study the basicity, the number of surface basic sites on alumina was found to be decreased by the In<sub>2</sub>
O<sub>3</sub>
 and Ga<sub>2</sub>
O<sub>3</sub>
 additives, A good correlation between the catalytic activity for 3,3-dimethylbut-1-ene isomerisation and the surface acidity estimated by CO and DMP adsorption was supposed. The combination of model reactions and adsorption of specific probe molecules gives us detailed information concerning the surface acid base properties.</div>
</front>
</TEI>
<inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1463-9076</s0>
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</fA03>
<fA05><s2>3</s2>
</fA05>
<fA06><s2>7</s2>
</fA06>
<fA08 i1="01" i2="1" l="ENG"><s1>Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part I.-Acid-base properties</s1>
</fA08>
<fA11 i1="01" i2="1"><s1>HANEDA (Masaaki)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>JOUBERT (Emmanuel)</s1>
</fA11>
<fA11 i1="03" i2="1"><s1>MENEZO (Jean-Christophe)</s1>
</fA11>
<fA11 i1="04" i2="1"><s1>DUPREZ (Daniel)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>BARBIER (Jacques)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>BION (Nicolas)</s1>
</fA11>
<fA11 i1="07" i2="1"><s1>DATURI (Marco)</s1>
</fA11>
<fA11 i1="08" i2="1"><s1>SAUSSEY (Jacques)</s1>
</fA11>
<fA11 i1="09" i2="1"><s1>LAVALLEY (Jean-Claude)</s1>
</fA11>
<fA11 i1="10" i2="1"><s1>HAMADA (Hideaki)</s1>
</fA11>
<fA14 i1="01"><s1>Laboratoire de Catalyse en Chimie Organique (LACCO), UMR 6503, CNRS-Université de Poitiers, 40 Avenue du Recteur Pineau</s1>
<s2>86022 Poitiers</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Laboratoire de Catalyse et Spectrochimie, UMR 6506, CNRS-ISMRA, 6 Bd du Maréchal Juin</s1>
<s2>14050, Caen</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
<sZ>8 aut.</sZ>
<sZ>9 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>National Institute of Materials and Chemical Research, 1-1 Higashi</s1>
<s2>Tsukuba, Ibaraki, 305-8565</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
<sZ>10 aut.</sZ>
</fA14>
<fA20><s1>1366-1370</s1>
</fA20>
<fA21><s1>2001</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>26801</s2>
<s5>354000094570950340</s5>
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<fA44><s0>0000</s0>
<s1>© 2001 INIST-CNRS. All rights reserved.</s1>
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</fA64>
<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Surface characterization of Al<sub>2</sub>
O<sub>3</sub>
, In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>2</sub>
 and Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>2</sub>
 prepared by sol-gel method was made focusing on the acid -base properties, Cyclohexanol conversion as a model reaction revealed that acid sites rather than basic sites are present predominantly on the surface. The presence of Lewis acid sites was confirmed by pyridine adsorption followed by Fourier transform infrared (FT-IR) spectroscopy. In addition, a certain amount of Brønsted acid sites were also revealed by the adsorption of 2,6-dimethylpyridine (DMP). From the adsorption of CO, it was found that the addition of Ga<sub>2</sub>
O<sub>3</sub>
 into alumina leads to a decrease of Lewis acid strength but to an increase of the number of sites, while In<sub>2</sub>
O<sub>3</sub>
 addition caused a global decrease of Lewis acidic properties of alumina. Using CO<sub>2</sub>
 as a probe to study the basicity, the number of surface basic sites on alumina was found to be decreased by the In<sub>2</sub>
O<sub>3</sub>
 and Ga<sub>2</sub>
O<sub>3</sub>
 additives, A good correlation between the catalytic activity for 3,3-dimethylbut-1-ene isomerisation and the surface acidity estimated by CO and DMP adsorption was supposed. The combination of model reactions and adsorption of specific probe molecules gives us detailed information concerning the surface acid base properties.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001C01A03A</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Etude expérimentale</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Experimental study</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Estudio experimental</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Catalyseur sur support</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Supported catalyst</s0>
<s5>02</s5>
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<fC03 i1="02" i2="X" l="SPA"><s0>Catalizador sobre soporte</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Gallium oxyde</s0>
<s1>ACT</s1>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Gallium oxide</s0>
<s1>ACT</s1>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Galio óxido</s0>
<s1>ACT</s1>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Indium oxyde</s0>
<s1>ACT</s1>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Indium oxide</s0>
<s1>ACT</s1>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Indio óxido</s0>
<s1>ACT</s1>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Alumine</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Alumina</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Alúmina</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Préparation</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Preparation</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Preparación</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Procédé sol gel</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Sol gel process</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Procedimiento sol gel</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Caractérisation</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Characterization</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Caracterización</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Propriété surface</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Surface properties</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Propiedad superficie</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Site catalytique</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Catalytic site</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Sitio catalítico</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Site adsorption</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Adsorption site</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Sitio adsorción</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Site acide</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Acidic site</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Sitio ácido</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Spectrométrie IR</s0>
<s5>14</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Infrared spectrometry</s0>
<s5>14</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Espectrometría IR</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Activité catalytique</s0>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Catalyst activity</s0>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Actividad catalítica</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE"><s0>Réaction catalytique</s0>
<s5>16</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG"><s0>Catalytic reaction</s0>
<s5>16</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA"><s0>Reacción catalítica</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE"><s0>Isomérisation</s0>
<s5>17</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG"><s0>Isomerization</s0>
<s5>17</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Isomerización</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="X" l="FRE"><s0>Composé éthylénique</s0>
<s5>18</s5>
</fC03>
<fC03 i1="17" i2="X" l="ENG"><s0>Ethylenic compound</s0>
<s5>18</s5>
</fC03>
<fC03 i1="17" i2="X" l="SPA"><s0>Compuesto etilénico</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>But-1-ène(3,3-diméthyl)</s0>
<s1>ENT</s1>
<s2>NK</s2>
<s4>INC</s4>
<s5>32</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Métal Composé</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>03</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Metal Compounds</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>03</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Metal Compuesto</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>03</s5>
</fC07>
<fN21><s1>176</s1>
</fN21>
</pA>
</standard>
</inist>
</record>

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   |texte=   Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part I.-Acid-base properties
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Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part I.-Acid-base properties

Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part I.-Acid-base properties

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