IndiumV3, Main, Repository, bibRecord, 010860

Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part II.-Surface reactivity with CO

Identifieur interne : 010860 ( Main/Repository ); précédent : 010859; suivant : 010861

Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part II.-Surface reactivity with CO

Auteurs : RBID : Pascal:01-0258335

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Réaction catalytique, Réduction chimique, Carbone monoxyde, Catalyseur sur support, Gallium oxyde, Indium oxyde, Alumine, Catalyse redox, Réactivité chimique, Activité catalytique, Activité superficielle, Spectrométrie IR.

English descriptors

KwdEn :
- Alumina, Carbon monoxide, Catalyst activity, Catalytic reaction, Chemical reactivity, Chemical reduction, Experimental study, Gallium oxide, Indium oxide, Infrared spectrometry, Redox catalysis, Supported catalyst, Surface activity.

Abstract

Surface reactivity toward H₂ and CO using a pulse method was investigated for Al₂O₃, In₂O₃-Al₂O₃and Ga₂O₃-Al₂O₃. It was found that reduction by either CO or H₂ and reoxidation by O₂ occurred reversibly on In₂O₃-Al₂O₃. Although the surface of Ga₂O₃-Al₂O₃ was hardly reduced by H₂, CO consumption and CO₂ formation was observed on exposure to CO. Mass spectroscopic analysis revealed the formation of H₂ from injection of CO pulses on Ga₂O₃ Al₂O₃, while small amounts of H₂ were detected on In₂O₃-Al₂O₃. The formation of H₂ on Ga₂O₃Al₂O₃ was also evidenced by Fourier transform infrared (FT-IR) spectroscopy. Namely, when Ga₂O₃-Al₂O₃ was exposed to CO at elevated temperatures above 573 K, the IR band assignable to Ga^y+-H species was detected at 1997 cm^-1. A reaction model in which the reaction of CO with basic hydroxy groups occurs on the surface of Ga₂O₃-Al₂O₃ (CO + OH → CO₂ + 1/2H₂) is proposed.

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Pascal:01-0258335

Le document en format XML

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<author><name sortKey="Menezo, Jean Christophe" uniqKey="Menezo J">Jean-Christophe Menezo</name>
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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>
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</author>
<author><name sortKey="Daturi, Marco" uniqKey="Daturi M">Marco Daturi</name>
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<author><name sortKey="Saussey, Jacques" uniqKey="Saussey J">Jacques Saussey</name>
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</placeName>
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</author>
<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>
<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">01-0258335</idno>
<date when="2001">2001</date>
<idno type="stanalyst">PASCAL 01-0258335 INIST</idno>
<idno type="RBID">Pascal:01-0258335</idno>
<idno type="wicri:Area/Main/Corpus">011101</idno>
<idno type="wicri:Area/Main/Repository">010860</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>Alumina</term>
<term>Carbon monoxide</term>
<term>Catalyst activity</term>
<term>Catalytic reaction</term>
<term>Chemical reactivity</term>
<term>Chemical reduction</term>
<term>Experimental study</term>
<term>Gallium oxide</term>
<term>Indium oxide</term>
<term>Infrared spectrometry</term>
<term>Redox catalysis</term>
<term>Supported catalyst</term>
<term>Surface activity</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Réaction catalytique</term>
<term>Réduction chimique</term>
<term>Carbone monoxyde</term>
<term>Catalyseur sur support</term>
<term>Gallium oxyde</term>
<term>Indium oxyde</term>
<term>Alumine</term>
<term>Catalyse redox</term>
<term>Réactivité chimique</term>
<term>Activité catalytique</term>
<term>Activité superficielle</term>
<term>Spectrométrie IR</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Surface reactivity toward H<sub>2</sub>
 and CO using a pulse method was investigated for Al<sub>2</sub>
O<sub>3</sub>
, In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
and Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
. It was found that reduction by either CO or H<sub>2</sub>
 and reoxidation by O<sub>2</sub>
 occurred reversibly on In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
. Although the surface of Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
 was hardly reduced by H<sub>2</sub>
, CO consumption and CO<sub>2</sub>
 formation was observed on exposure to CO. Mass spectroscopic analysis revealed the formation of H<sub>2</sub>
 from injection of CO pulses on Ga<sub>2</sub>
O<sub>3</sub>
 Al<sub>2</sub>
O<sub>3</sub>
, while small amounts of H<sub>2</sub>
 were detected on In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
. The formation of H<sub>2</sub>
 on Ga<sub>2</sub>
O<sub>3</sub>
Al<sub>2</sub>
O<sub>3</sub>
 was also evidenced by Fourier transform infrared (FT-IR) spectroscopy. Namely, when Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
 was exposed to CO at elevated temperatures above 573 K, the IR band assignable to Ga<sup>y+</sup>
-H species was detected at 1997 cm<sup>-1</sup>
. A reaction model in which the reaction of CO with basic hydroxy groups occurs on the surface of Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
 (CO + OH → CO<sub>2</sub>
 + 1/2H<sub>2</sub>
) is proposed.</div>
</front>
</TEI>
<inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1463-9076</s0>
</fA01>
<fA03 i2="1"><s0>PCCP, Phys. chem. chem. phys. : (Print)</s0>
</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 II.-Surface reactivity with CO</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>1371-1375</s1>
</fA20>
<fA21><s1>2001</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>26801</s2>
<s5>354000094570950350</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2001 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>28 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>01-0258335</s0>
</fA47>
<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>PCCP. Physical chemistry chemical physics : (Print)</s0>
</fA64>
<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Surface reactivity toward H<sub>2</sub>
 and CO using a pulse method was investigated for Al<sub>2</sub>
O<sub>3</sub>
, In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
and Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
. It was found that reduction by either CO or H<sub>2</sub>
 and reoxidation by O<sub>2</sub>
 occurred reversibly on In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
. Although the surface of Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
 was hardly reduced by H<sub>2</sub>
, CO consumption and CO<sub>2</sub>
 formation was observed on exposure to CO. Mass spectroscopic analysis revealed the formation of H<sub>2</sub>
 from injection of CO pulses on Ga<sub>2</sub>
O<sub>3</sub>
 Al<sub>2</sub>
O<sub>3</sub>
, while small amounts of H<sub>2</sub>
 were detected on In<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
. The formation of H<sub>2</sub>
 on Ga<sub>2</sub>
O<sub>3</sub>
Al<sub>2</sub>
O<sub>3</sub>
 was also evidenced by Fourier transform infrared (FT-IR) spectroscopy. Namely, when Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
 was exposed to CO at elevated temperatures above 573 K, the IR band assignable to Ga<sup>y+</sup>
-H species was detected at 1997 cm<sup>-1</sup>
. A reaction model in which the reaction of CO with basic hydroxy groups occurs on the surface of Ga<sub>2</sub>
O<sub>3</sub>
-Al<sub>2</sub>
O<sub>3</sub>
 (CO + OH → CO<sub>2</sub>
 + 1/2H<sub>2</sub>
) is proposed.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001C01A03B</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>Réaction catalytique</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Catalytic reaction</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Reacción catalítica</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Réduction chimique</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Chemical reduction</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Reducción química</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Carbone monoxyde</s0>
<s1>ENT</s1>
<s2>NK</s2>
<s2>FX</s2>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Carbon monoxide</s0>
<s1>ENT</s1>
<s2>NK</s2>
<s2>FX</s2>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Carbono monóxido</s0>
<s1>ENT</s1>
<s2>NK</s2>
<s2>FX</s2>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Catalyseur sur support</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Supported catalyst</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Catalizador sobre soporte</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Gallium oxyde</s0>
<s1>ACT</s1>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Gallium oxide</s0>
<s1>ACT</s1>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Galio óxido</s0>
<s1>ACT</s1>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Indium oxyde</s0>
<s1>ACT</s1>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Indium oxide</s0>
<s1>ACT</s1>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Indio óxido</s0>
<s1>ACT</s1>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Alumine</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Alumina</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Alúmina</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Catalyse redox</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Redox catalysis</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Catálisis redox</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Réactivité chimique</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Chemical reactivity</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Reactividad química</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Activité catalytique</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Catalyst activity</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Actividad catalítica</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Activité superficielle</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Surface activity</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Actividad superficial</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>
<fC07 i1="01" i2="X" l="FRE"><s0>Métal Composé</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>06</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Metal Compounds</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>06</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Metal Compuesto</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>06</s5>
</fC07>
<fN21><s1>176</s1>
</fN21>
</pA>
</standard>
</inist>
</record>

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Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part II.-Surface reactivity with CO

Surface characterization of alumina-supported catalysts prepared by sol-gel method. Part II.-Surface reactivity with CO

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