Effects of support and metal loading on the characteristics of Co based catalysts for selective hydrogenation of citral
Identifieur interne : 000151 ( France/Analysis ); précédent : 000150; suivant : 000152Effects of support and metal loading on the characteristics of Co based catalysts for selective hydrogenation of citral
Auteurs : K. Kouachi [France, Algérie] ; G. Lafaye [France] ; C. Especel [France] ; O. Cherifi [Algérie] ; P. Mardcota [France]Source :
- Journal of molecular catalysis. A, Chemical [ 1381-1169 ] ; 2008.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Cobalt.
English descriptors
- KwdEn :
Abstract
Silica-, alumina- and titania-supported Co catalysts with different metal loadings were tested for selective citral hydrogenation in liquid phase. Temperature programmed desorption of hydrogen (H2-TPD) indicated that the catalysts with the highest unsaturated alcohols selectivities present particular H-Co species. Electron diffraction and XRD measurements revealed that these species would be linked to the presence of Co0 hexagonal phase. According to the results obtained by TEM and cyclohexane dehydrogenation, these two properties would be present on large Co particles.
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Pascal:08-0229737Le document en format XML
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Kouachi</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Université de Poitiers, Laboratoire de Catalyse en Chimie Organique, UMR 6503</s1><s2>86022 Poitiers</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Poitou-Charentes</region><settlement type="city">Poitiers</settlement></placeName><orgName type="university">Université de Poitiers</orgName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Chimie de Gaz Naturel, Faculté de Chimie, USTHB, BP 32</s1><s2>16111 El Alia, Bab Ezzouar</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>16111 El Alia, Bab Ezzouar</wicri:noRegion></affiliation></author><author><name sortKey="Lafaye, G" sort="Lafaye, G" uniqKey="Lafaye G" first="G." last="Lafaye">G. 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Kouachi</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Université de Poitiers, Laboratoire de Catalyse en Chimie Organique, UMR 6503</s1><s2>86022 Poitiers</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Poitou-Charentes</region><settlement type="city">Poitiers</settlement></placeName><orgName type="university">Université de Poitiers</orgName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Chimie de Gaz Naturel, Faculté de Chimie, USTHB, BP 32</s1><s2>16111 El Alia, Bab Ezzouar</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>16111 El Alia, Bab Ezzouar</wicri:noRegion></affiliation></author><author><name sortKey="Lafaye, G" sort="Lafaye, G" uniqKey="Lafaye G" first="G." last="Lafaye">G. Lafaye</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Université de Poitiers, Laboratoire de Catalyse en Chimie Organique, UMR 6503</s1><s2>86022 Poitiers</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Poitou-Charentes</region><settlement type="city">Poitiers</settlement></placeName><orgName type="university">Université de Poitiers</orgName></affiliation></author><author><name sortKey="Especel, C" sort="Especel, C" uniqKey="Especel C" first="C." last="Especel">C. Especel</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Université de Poitiers, Laboratoire de Catalyse en Chimie Organique, UMR 6503</s1><s2>86022 Poitiers</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Poitou-Charentes</region><settlement type="city">Poitiers</settlement></placeName><orgName type="university">Université de Poitiers</orgName></affiliation></author><author><name sortKey="Cherifi, O" sort="Cherifi, O" uniqKey="Cherifi O" first="O." last="Cherifi">O. Cherifi</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Chimie de Gaz Naturel, Faculté de Chimie, USTHB, BP 32</s1><s2>16111 El Alia, Bab Ezzouar</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>16111 El Alia, Bab Ezzouar</wicri:noRegion></affiliation></author><author><name sortKey="Mardcota, P" sort="Mardcota, P" uniqKey="Mardcota P" first="P." last="Mardcota">P. Mardcota</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Université de Poitiers, Laboratoire de Catalyse en Chimie Organique, UMR 6503</s1><s2>86022 Poitiers</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Poitou-Charentes</region><settlement type="city">Poitiers</settlement></placeName><orgName type="university">Université de Poitiers</orgName></affiliation></author></analytic><series><title level="j" type="main">Journal of molecular catalysis. A, Chemical</title><title level="j" type="abbreviated">J. mol. catal., A Chem.</title><idno type="ISSN">1381-1169</idno><imprint><date when="2008">2008</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of molecular catalysis. A, Chemical</title><title level="j" type="abbreviated">J. mol. catal., A Chem.</title><idno type="ISSN">1381-1169</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aldehyde</term><term>Alumina</term><term>Carbon monoxide</term><term>Catalyst</term><term>Citral</term><term>Cobalt</term><term>Heterogeneous catalysis</term><term>Hydrogenation</term><term>Silica</term><term>Support</term><term>Supported catalyst</term><term>Titanium oxide</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Support</term><term>Monoxyde de carbone</term><term>Catalyseur</term><term>Hydrogénation</term><term>Citral</term><term>Cobalt</term><term>Silice</term><term>Alumine</term><term>Oxyde de titane</term><term>Catalyseur sur support</term><term>Catalyse hétérogène</term><term>Aldéhyde</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Cobalt</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Silica-, alumina- and titania-supported Co catalysts with different metal loadings were tested for selective citral hydrogenation in liquid phase. Temperature programmed desorption of hydrogen (H<sub>2</sub>-TPD) indicated that the catalysts with the highest unsaturated alcohols selectivities present particular H-Co species. Electron diffraction and XRD measurements revealed that these species would be linked to the presence of Co<sup>0</sup> hexagonal phase. According to the results obtained by TEM and cyclohexane dehydrogenation, these two properties would be present on large Co particles.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>France</li></country><region><li>Nouvelle-Aquitaine</li><li>Poitou-Charentes</li></region><settlement><li>Poitiers</li></settlement><orgName><li>Université de Poitiers</li></orgName></list><tree><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Kouachi, K" sort="Kouachi, K" uniqKey="Kouachi K" first="K." last="Kouachi">K. Kouachi</name></region><name sortKey="Especel, C" sort="Especel, C" uniqKey="Especel C" first="C." last="Especel">C. Especel</name><name sortKey="Lafaye, G" sort="Lafaye, G" uniqKey="Lafaye G" first="G." last="Lafaye">G. Lafaye</name><name sortKey="Mardcota, P" sort="Mardcota, P" uniqKey="Mardcota P" first="P." last="Mardcota">P. Mardcota</name></country><country name="Algérie"><noRegion><name sortKey="Kouachi, K" sort="Kouachi, K" uniqKey="Kouachi K" first="K." last="Kouachi">K. Kouachi</name></noRegion><name sortKey="Cherifi, O" sort="Cherifi, O" uniqKey="Cherifi O" first="O." last="Cherifi">O. Cherifi</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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