Characteristics of gold supported on nickel-containing hydrotalcite catalysts in CO oxidation
Identifieur interne : 000120 ( Main/Exploration ); précédent : 000119; suivant : 000121Characteristics of gold supported on nickel-containing hydrotalcite catalysts in CO oxidation
Auteurs : Loubna Arab [France, Algérie] ; Mokhtar Boutahala [Algérie] ; Brahim Djellouli [Algérie] ; Thierry Dintzer [France] ; Véronique Pitchon [France]Source :
- Applied catalysis. A, General : (Print) [ 0926-860X ] ; 2014.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
Abstract
A series of catalysts containing Au supported on Ni-based hydrotalcites (HT) Ni-Mg-Al varying in Ni content, but with a constant Mg2+/Al3+ratio of 2, was prepared. Au nanoparticles were successfully formed and tested in the CO oxidation reaction. The effects of nickel content, HAuCl4 concentration, reduction pre-treatment and Au loadings were studied. The catalysts were characterized by XRD, BET, TPR, XPS and TEM. Au/Ni-Mg-Al hydrotalcites led to strongly enhanced activities for the CO reaction when compared with the bare support. Reduction of the catalyst increased the catalytic performance, contributing to an improved dispersion of gold as revealed by TEM. A significant difference in CO oxidation activity was observed which proved dependent on the HT precursor composition; the highest activity was found for the catalysts containing the lowest nickel content which correlated with the formation of Au particles of smaller size. The optimization of the preparation parameters (initial concentration of gold, gold loading, pre-treatment) allowed the successful deposition of 4nm Au particles (Au/Ni0.06Mg0.94),very active for CO oxidation.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000029
- to stream PascalFrancis, to step Curation: 000412
- to stream PascalFrancis, to step Checkpoint: 000034
- to stream Main, to step Merge: 000121
- to stream Main, to step Curation: 000120
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Characteristics of gold supported on nickel-containing hydrotalcite catalysts in CO oxidation</title><author><name sortKey="Arab, Loubna" sort="Arab, Loubna" uniqKey="Arab L" first="Loubna" last="Arab">Loubna Arab</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>ICPEES, Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé - UMR 7515 du CNRS - Université de Strasbourg, ECPM, 25 rue Becquerel</s1><s2>67087 Strasbourg</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université de Strasbourg</orgName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LGPC, Laboratoire de Génie des Procédés Chimiques, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Boutahala, Mokhtar" sort="Boutahala, Mokhtar" uniqKey="Boutahala M" first="Mokhtar" last="Boutahala">Mokhtar Boutahala</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LGPC, Laboratoire de Génie des Procédés Chimiques, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Djellouli, Brahim" sort="Djellouli, Brahim" uniqKey="Djellouli B" first="Brahim" last="Djellouli">Brahim Djellouli</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LGPC, Laboratoire de Génie des Procédés Chimiques, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Dintzer, Thierry" sort="Dintzer, Thierry" uniqKey="Dintzer T" first="Thierry" last="Dintzer">Thierry Dintzer</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>ICPEES, Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé - UMR 7515 du CNRS - Université de Strasbourg, ECPM, 25 rue Becquerel</s1><s2>67087 Strasbourg</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université de Strasbourg</orgName></affiliation></author><author><name sortKey="Pitchon, Veronique" sort="Pitchon, Veronique" uniqKey="Pitchon V" first="Véronique" last="Pitchon">Véronique Pitchon</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>ICPEES, Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé - UMR 7515 du CNRS - Université de Strasbourg, ECPM, 25 rue Becquerel</s1><s2>67087 Strasbourg</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université de Strasbourg</orgName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">14-0121852</idno><date when="2014">2014</date><idno type="stanalyst">PASCAL 14-0121852 INIST</idno><idno type="RBID">Pascal:14-0121852</idno><idno type="wicri:Area/PascalFrancis/Corpus">000029</idno><idno type="wicri:Area/PascalFrancis/Curation">000412</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000034</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000034</idno><idno type="wicri:doubleKey">0926-860X:2014:Arab L:characteristics:of:gold</idno><idno type="wicri:Area/Main/Merge">000121</idno><idno type="wicri:Area/Main/Curation">000120</idno><idno type="wicri:Area/Main/Exploration">000120</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Characteristics of gold supported on nickel-containing hydrotalcite catalysts in CO oxidation</title><author><name sortKey="Arab, Loubna" sort="Arab, Loubna" uniqKey="Arab L" first="Loubna" last="Arab">Loubna Arab</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>ICPEES, Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé - UMR 7515 du CNRS - Université de Strasbourg, ECPM, 25 rue Becquerel</s1><s2>67087 Strasbourg</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université de Strasbourg</orgName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LGPC, Laboratoire de Génie des Procédés Chimiques, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Boutahala, Mokhtar" sort="Boutahala, Mokhtar" uniqKey="Boutahala M" first="Mokhtar" last="Boutahala">Mokhtar Boutahala</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LGPC, Laboratoire de Génie des Procédés Chimiques, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Djellouli, Brahim" sort="Djellouli, Brahim" uniqKey="Djellouli B" first="Brahim" last="Djellouli">Brahim Djellouli</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LGPC, Laboratoire de Génie des Procédés Chimiques, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Dintzer, Thierry" sort="Dintzer, Thierry" uniqKey="Dintzer T" first="Thierry" last="Dintzer">Thierry Dintzer</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>ICPEES, Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé - UMR 7515 du CNRS - Université de Strasbourg, ECPM, 25 rue Becquerel</s1><s2>67087 Strasbourg</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université de Strasbourg</orgName></affiliation></author><author><name sortKey="Pitchon, Veronique" sort="Pitchon, Veronique" uniqKey="Pitchon V" first="Véronique" last="Pitchon">Véronique Pitchon</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>ICPEES, Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé - UMR 7515 du CNRS - Université de Strasbourg, ECPM, 25 rue Becquerel</s1><s2>67087 Strasbourg</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université de Strasbourg</orgName></affiliation></author></analytic><series><title level="j" type="main">Applied catalysis. A, General : (Print)</title><title level="j" type="abbreviated">Appl. catal., A Gen. : (Print)</title><idno type="ISSN">0926-860X</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Applied catalysis. A, General : (Print)</title><title level="j" type="abbreviated">Appl. catal., A Gen. : (Print)</title><idno type="ISSN">0926-860X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Catalyst</term><term>Catalytic reaction</term><term>Gold</term><term>Heterogeneous catalysis</term><term>Hydrotalcite</term><term>Mesoporosity</term><term>Nickel</term><term>Oxidation</term><term>Support</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Or</term><term>Support</term><term>Nickel</term><term>Hydrotalcite</term><term>Catalyseur</term><term>Oxydation</term><term>Catalyse hétérogène</term><term>Réaction catalytique</term><term>Mésoporosité</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Or</term><term>Nickel</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A series of catalysts containing Au supported on Ni-based hydrotalcites (HT) Ni-Mg-Al varying in Ni content, but with a constant Mg<sup>2+</sup>/Al<sup>3+</sup>ratio of 2, was prepared. Au nanoparticles were successfully formed and tested in the CO oxidation reaction. The effects of nickel content, HAuCl<sub>4</sub> concentration, reduction pre-treatment and Au loadings were studied. The catalysts were characterized by XRD, BET, TPR, XPS and TEM. Au/Ni-Mg-Al hydrotalcites led to strongly enhanced activities for the CO reaction when compared with the bare support. Reduction of the catalyst increased the catalytic performance, contributing to an improved dispersion of gold as revealed by TEM. A significant difference in CO oxidation activity was observed which proved dependent on the HT precursor composition; the highest activity was found for the catalysts containing the lowest nickel content which correlated with the formation of Au particles of smaller size. The optimization of the preparation parameters (initial concentration of gold, gold loading, pre-treatment) allowed the successful deposition of 4nm Au particles (Au/Ni<sub>0.06</sub>Mg<sub>0.94</sub>),very active for CO oxidation.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>France</li></country><region><li>Alsace (région administrative)</li><li>Grand Est</li></region><settlement><li>Strasbourg</li></settlement><orgName><li>Université de Strasbourg</li></orgName></list><tree><country name="France"><region name="Grand Est"><name sortKey="Arab, Loubna" sort="Arab, Loubna" uniqKey="Arab L" first="Loubna" last="Arab">Loubna Arab</name></region><name sortKey="Dintzer, Thierry" sort="Dintzer, Thierry" uniqKey="Dintzer T" first="Thierry" last="Dintzer">Thierry Dintzer</name><name sortKey="Pitchon, Veronique" sort="Pitchon, Veronique" uniqKey="Pitchon V" first="Véronique" last="Pitchon">Véronique Pitchon</name></country><country name="Algérie"><noRegion><name sortKey="Arab, Loubna" sort="Arab, Loubna" uniqKey="Arab L" first="Loubna" last="Arab">Loubna Arab</name></noRegion><name sortKey="Boutahala, Mokhtar" sort="Boutahala, Mokhtar" uniqKey="Boutahala M" first="Mokhtar" last="Boutahala">Mokhtar Boutahala</name><name sortKey="Djellouli, Brahim" sort="Djellouli, Brahim" uniqKey="Djellouli B" first="Brahim" last="Djellouli">Brahim Djellouli</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/NickelMaghrebV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000120 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000120 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= NickelMaghrebV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Pascal:14-0121852
|texte= Characteristics of gold supported on nickel-containing hydrotalcite catalysts in CO oxidation
}}
| This area was generated with Dilib version V0.6.27. |  |