Influence of preparation method on catalytic properties of mixed calcium-cobalt orthophosphates
Identifieur interne : 000188 ( Istex/Corpus ); précédent : 000187; suivant : 000189Influence of preparation method on catalytic properties of mixed calcium-cobalt orthophosphates
Auteurs : A. Legrouri ; S. S. Romdhane ; J. Lenzi ; M. Lenzi ; G. BonelSource :
- Journal of Materials Science [ 0022-2461 ] ; 1996-05-01.
Abstract
Abstract: Mixed calcium-cobalt orthophosphates of the formula Ca3−x COx(PO4)2, with 0 ⩽x ⩽ 1.1, were prepared by coprecipitation and solid-state reaction. Structural characterization showed that, in both cases, the solids obtained resulted from substitution of some Ca2+ ions by Co2+ ions in the β-Ca3(PO4)2 structure. The solubility limit of cobalt in this structure corresponded tox=0.31. The morphology of these compounds was investigated by surface-area measurements and scanning electron microscopy. When tested in the 2-propanol decomposition reaction, the maximum activity in dehydrogenation was obtained with the compound corresponding to cobalt maximum solubility in β-Ca3(PO4)2 structure. Higher activities were obtained for samples prepared by coprecipitation.
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DOI: 10.1007/BF01152963
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Legrouri</name><affiliation><mods:affiliation>School of Science and Engineering, Al Akhawayn University, P.O. Box 104, 5300, Ifrane, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Romdhane, S S" sort="Romdhane, S S" uniqKey="Romdhane S" first="S. S." last="Romdhane">S. S. Romdhane</name><affiliation><mods:affiliation>Laboratoire de Chimie Minérale, Ecole Nationale d'Ingénieurs, 6029, Gabès, Tunisia</mods:affiliation></affiliation></author><author><name sortKey="Lenzi, J" sort="Lenzi, J" uniqKey="Lenzi J" first="J." last="Lenzi">J. Lenzi</name><affiliation><mods:affiliation>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Lenzi, M" sort="Lenzi, M" uniqKey="Lenzi M" first="M." last="Lenzi">M. Lenzi</name><affiliation><mods:affiliation>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Bonel, G" sort="Bonel, G" uniqKey="Bonel G" first="G." last="Bonel">G. Bonel</name><affiliation><mods:affiliation>Laboratoire de Physicochimie des Solides, 38, Rue des 36-Ponts, 31400, Toulouse, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Materials Science</title><title level="j" type="abbrev">J Mater Sci</title><idno type="ISSN">0022-2461</idno><idno type="eISSN">1573-4803</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1996-05-01">1996-05-01</date><biblScope unit="volume">31</biblScope><biblScope unit="issue">9</biblScope><biblScope unit="page" from="2469">2469</biblScope><biblScope unit="page" to="2473">2473</biblScope></imprint><idno type="ISSN">0022-2461</idno></series><idno type="istex">A6BFB672B54B637CDAB9EE41BC82BFBACA18EE5A</idno><idno type="DOI">10.1007/BF01152963</idno><idno type="ArticleID">BF01152963</idno><idno type="ArticleID">Art33</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-2461</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Mixed calcium-cobalt orthophosphates of the formula Ca3−x COx(PO4)2, with 0 ⩽x ⩽ 1.1, were prepared by coprecipitation and solid-state reaction. Structural characterization showed that, in both cases, the solids obtained resulted from substitution of some Ca2+ ions by Co2+ ions in the β-Ca3(PO4)2 structure. The solubility limit of cobalt in this structure corresponded tox=0.31. The morphology of these compounds was investigated by surface-area measurements and scanning electron microscopy. When tested in the 2-propanol decomposition reaction, the maximum activity in dehydrogenation was obtained with the compound corresponding to cobalt maximum solubility in β-Ca3(PO4)2 structure. Higher activities were obtained for samples prepared by coprecipitation.</div></front></TEI><istex><corpusName>springer</corpusName><author><json:item><name>A. Legrouri</name><affiliations><json:string>School of Science and Engineering, Al Akhawayn University, P.O. Box 104, 5300, Ifrane, Morocco</json:string></affiliations></json:item><json:item><name>S. S. Romdhane</name><affiliations><json:string>Laboratoire de Chimie Minérale, Ecole Nationale d'Ingénieurs, 6029, Gabès, Tunisia</json:string></affiliations></json:item><json:item><name>J. Lenzi</name><affiliations><json:string>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</json:string></affiliations></json:item><json:item><name>M. Lenzi</name><affiliations><json:string>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</json:string></affiliations></json:item><json:item><name>G. Bonel</name><affiliations><json:string>Laboratoire de Physicochimie des Solides, 38, Rue des 36-Ponts, 31400, Toulouse, France</json:string></affiliations></json:item></author><articleId><json:string>BF01152963</json:string><json:string>Art33</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>OriginalPaper</json:string></originalGenre><abstract>Abstract: Mixed calcium-cobalt orthophosphates of the formula Ca3−x COx(PO4)2, with 0 ⩽x ⩽ 1.1, were prepared by coprecipitation and solid-state reaction. Structural characterization showed that, in both cases, the solids obtained resulted from substitution of some Ca2+ ions by Co2+ ions in the β-Ca3(PO4)2 structure. The solubility limit of cobalt in this structure corresponded tox=0.31. The morphology of these compounds was investigated by surface-area measurements and scanning electron microscopy. When tested in the 2-propanol decomposition reaction, the maximum activity in dehydrogenation was obtained with the compound corresponding to cobalt maximum solubility in β-Ca3(PO4)2 structure. 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Box 104, 5300, Ifrane, Morocco</affiliation></author><author xml:id="author-2"><persName><forename type="first">S.</forename><surname>Romdhane</surname></persName><affiliation>Laboratoire de Chimie Minérale, Ecole Nationale d'Ingénieurs, 6029, Gabès, Tunisia</affiliation></author><author xml:id="author-3"><persName><forename type="first">J.</forename><surname>Lenzi</surname></persName><affiliation>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</affiliation></author><author xml:id="author-4"><persName><forename type="first">M.</forename><surname>Lenzi</surname></persName><affiliation>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</affiliation></author><author xml:id="author-5"><persName><forename type="first">G.</forename><surname>Bonel</surname></persName><affiliation>Laboratoire de Physicochimie des Solides, 38, Rue des 36-Ponts, 31400, Toulouse, France</affiliation></author></analytic><monogr><title level="j">Journal of Materials Science</title><title level="j" type="abbrev">J Mater Sci</title><idno type="journal-ID">10853</idno><idno type="pISSN">0022-2461</idno><idno type="eISSN">1573-4803</idno><idno type="issue-article-count">38</idno><idno type="volume-issue-count">24</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1996-05-01"></date><biblScope unit="volume">31</biblScope><biblScope unit="issue">9</biblScope><biblScope unit="page" from="2469">2469</biblScope><biblScope unit="page" to="2473">2473</biblScope></imprint></monogr><idno type="istex">A6BFB672B54B637CDAB9EE41BC82BFBACA18EE5A</idno><idno type="DOI">10.1007/BF01152963</idno><idno type="ArticleID">BF01152963</idno><idno type="ArticleID">Art33</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1994-01-26</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Abstract: Mixed calcium-cobalt orthophosphates of the formula Ca3−x COx(PO4)2, with 0 ⩽x ⩽ 1.1, were prepared by coprecipitation and solid-state reaction. Structural characterization showed that, in both cases, the solids obtained resulted from substitution of some Ca2+ ions by Co2+ ions in the β-Ca3(PO4)2 structure. The solubility limit of cobalt in this structure corresponded tox=0.31. The morphology of these compounds was investigated by surface-area measurements and scanning electron microscopy. When tested in the 2-propanol decomposition reaction, the maximum activity in dehydrogenation was obtained with the compound corresponding to cobalt maximum solubility in β-Ca3(PO4)2 structure. 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Box 104</Postbox><Postcode>5300</Postcode><City>Ifrane</City><Country>Morocco</Country></OrgAddress></Affiliation><Affiliation ID="Aff2"><OrgDivision>Laboratoire de Chimie Minérale</OrgDivision><OrgName>Ecole Nationale d'Ingénieurs</OrgName><OrgAddress><Postcode>6029</Postcode><City>Gabès</City><Country>Tunisia</Country></OrgAddress></Affiliation><Affiliation ID="Aff3"><OrgDivision>Centre de Génie Photochimique</OrgDivision><OrgName>Ecole Nationale Supérieure de Chimie</OrgName><OrgAddress><Street>118, Route de Narbonne</Street><Postcode>31077</Postcode><City>Toulouse-Cedex</City><Country>France</Country></OrgAddress></Affiliation><Affiliation ID="Aff4"><OrgName>Laboratoire de Physicochimie des Solides</OrgName><OrgAddress><Street>38, Rue des 36-Ponts</Street><Postcode>31400</Postcode><City>Toulouse</City><Country>France</Country></OrgAddress></Affiliation></AuthorGroup><Abstract ID="Abs1" Language="En"><Heading>Abstract</Heading><Para>Mixed calcium-cobalt orthophosphates of the formula Ca<Subscript>3−<Emphasis Type="Italic">x</Emphasis></Subscript>CO<Subscript>x</Subscript>(PO<Subscript>4</Subscript>)<Subscript>2</Subscript>, with 0 ⩽<Emphasis Type="Italic">x</Emphasis> ⩽ 1.1, were prepared by coprecipitation and solid-state reaction. Structural characterization showed that, in both cases, the solids obtained resulted from substitution of some Ca<Superscript>2+</Superscript> ions by Co<Superscript>2+</Superscript> ions in the β-Ca<Subscript>3</Subscript>(PO<Subscript>4</Subscript>)<Subscript>2</Subscript> structure. The solubility limit of cobalt in this structure corresponded to<Emphasis Type="Italic">x</Emphasis>=0.31. The morphology of these compounds was investigated by surface-area measurements and scanning electron microscopy. When tested in the 2-propanol decomposition reaction, the maximum activity in dehydrogenation was obtained with the compound corresponding to cobalt maximum solubility in β-Ca<Subscript>3</Subscript>(PO<Subscript>4</Subscript>)<Subscript>2</Subscript> structure. Higher activities were obtained for samples prepared by coprecipitation.</Para></Abstract></ArticleHeader><NoBody></NoBody></Article></Issue></Volume></Journal></Publisher></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Influence of preparation method on catalytic properties of mixed calcium-cobalt orthophosphates</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Influence of preparation method on catalytic properties of mixed calcium-cobalt orthophosphates</title></titleInfo><name type="personal"><namePart type="given">A.</namePart><namePart type="family">Legrouri</namePart><affiliation>School of Science and Engineering, Al Akhawayn University, P.O. Box 104, 5300, Ifrane, Morocco</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">S.</namePart><namePart type="given">S.</namePart><namePart type="family">Romdhane</namePart><affiliation>Laboratoire de Chimie Minérale, Ecole Nationale d'Ingénieurs, 6029, Gabès, Tunisia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">J.</namePart><namePart type="family">Lenzi</namePart><affiliation>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Lenzi</namePart><affiliation>Centre de Génie Photochimique, Ecole Nationale Supérieure de Chimie, 118, Route de Narbonne, 31077, Toulouse-Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G.</namePart><namePart type="family">Bonel</namePart><affiliation>Laboratoire de Physicochimie des Solides, 38, Rue des 36-Ponts, 31400, Toulouse, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="OriginalPaper"></genre><originInfo><publisher>Kluwer Academic Publishers</publisher><place><placeTerm type="text">Dordrecht</placeTerm></place><dateCreated encoding="w3cdtf">1994-01-26</dateCreated><dateIssued encoding="w3cdtf">1996-05-01</dateIssued><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Abstract: Mixed calcium-cobalt orthophosphates of the formula Ca3−x COx(PO4)2, with 0 ⩽x ⩽ 1.1, were prepared by coprecipitation and solid-state reaction. Structural characterization showed that, in both cases, the solids obtained resulted from substitution of some Ca2+ ions by Co2+ ions in the β-Ca3(PO4)2 structure. The solubility limit of cobalt in this structure corresponded tox=0.31. The morphology of these compounds was investigated by surface-area measurements and scanning electron microscopy. When tested in the 2-propanol decomposition reaction, the maximum activity in dehydrogenation was obtained with the compound corresponding to cobalt maximum solubility in β-Ca3(PO4)2 structure. Higher activities were obtained for samples prepared by coprecipitation.</abstract><relatedItem type="host"><titleInfo><title>Journal of Materials Science</title></titleInfo><titleInfo type="abbreviated"><title>J Mater Sci</title></titleInfo><genre type="journal" displayLabel="Archive Journal"></genre><originInfo><dateIssued encoding="w3cdtf">1996-05-01</dateIssued><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><subject><genre>Chemistry</genre><topic>Polymer Sciences</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Characterization and Evaluation Materials</topic><topic>Mechanics</topic></subject><identifier type="ISSN">0022-2461</identifier><identifier type="eISSN">1573-4803</identifier><identifier type="JournalID">10853</identifier><identifier type="IssueArticleCount">38</identifier><identifier type="VolumeIssueCount">24</identifier><part><date>1996</date><detail type="volume"><number>31</number><caption>vol.</caption></detail><detail type="issue"><number>9</number><caption>no.</caption></detail><extent unit="pages"><start>2469</start><end>2473</end></extent></part><recordInfo><recordOrigin>Chapman & Hall, 1996</recordOrigin></recordInfo></relatedItem><identifier type="istex">A6BFB672B54B637CDAB9EE41BC82BFBACA18EE5A</identifier><identifier type="DOI">10.1007/BF01152963</identifier><identifier type="ArticleID">BF01152963</identifier><identifier type="ArticleID">Art33</identifier><accessCondition type="use and reproduction" contentType="copyright">Chapman & Hall, 1996</accessCondition><recordInfo><recordContentSource>SPRINGER</recordContentSource><recordOrigin>Chapman & Hall, 1996</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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|type= RBID
|clé= ISTEX:A6BFB672B54B637CDAB9EE41BC82BFBACA18EE5A
|texte= Influence of preparation method on catalytic properties of mixed calcium-cobalt orthophosphates
}}
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