Cobalt spinel CoAl2O4 via sol-gel process : elaboration and surface properties
Identifieur interne : 000289 ( PascalFrancis/Checkpoint ); précédent : 000288; suivant : 000290Cobalt spinel CoAl2O4 via sol-gel process : elaboration and surface properties
Auteurs : S. Chemlal [Maroc] ; A. Larbot [France] ; M. Persin [France] ; J. Sarrazin [France] ; M. Sghyar [Maroc] ; M. Rafiq [Maroc]Source :
- Materials research bulletin [ 0025-5408 ] ; 2000.
Descripteurs français
- Pascal (Inist)
- Etude expérimentale, Poudre, Procédé sol gel, Suspension colloïdale, Déstatisation, Traitement thermique, Cristallisation, Spinelles, Aluminium oxyde, Cobalt oxyde, Caractérisation, Propriété thermique, Morphologie, Aire superficielle, Charge superficielle, pH, Mobilité électrophorétique, Coulée en barbotine, 8270, 8110D, Membrane, Ultrafiltration, CoAl2O4, Al Co O.
English descriptors
- KwdEn :
- Aluminium oxide, Characterization, Cobalt oxide, Colloidal suspension, Crystallization, Destatization, Electrophoretic mobility, Experimental study, Heat treatment, Membrane, Morphology, Powder, Slip casting, Sol gel process, Spinels, Surface area, Surface charge, Thermal properties, Ultrafiltration, pH.
Abstract
In this work the preparation of cobalt spinel CoAl2O4 is described. The technique of colloidal solution destabilization was used as the sol-gel process. The powder obtained from the dried gel was characterized by thermal analysis (thermogravimetric and differential), X-ray diffraction, infrared spectroscopy, and specific surface area measurement. Crystallization of CoAl2O4 spinels occurs at about 400°C. The study of surface properties (surface charge and electrophoretic mobility) of the spinel powder fired at 600°C, in suspension in different electrolyte solutions (10-3 molar ionic strength), shows that the spinel material charge depends on the pH of the solution. The spinel sol was used for the preparation of membrane by the slip-casting method.
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Larbot</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Persin, M" sort="Persin, M" uniqKey="Persin M" first="M." last="Persin">M. Persin</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Sarrazin, J" sort="Sarrazin, J" uniqKey="Sarrazin J" first="J." last="Sarrazin">J. Sarrazin</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Sghyar, M" sort="Sghyar, M" uniqKey="Sghyar M" first="M." last="Sghyar">M. Sghyar</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences</s1><s2>Dhar Mehraz Fès</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Dhar Mehraz Fès</wicri:noRegion></affiliation></author><author><name sortKey="Rafiq, M" sort="Rafiq, M" uniqKey="Rafiq M" first="M." last="Rafiq">M. Rafiq</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences</s1><s2>Dhar Mehraz Fès</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Dhar Mehraz Fès</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">01-0421046</idno><date when="2000">2000</date><idno type="stanalyst">PASCAL 01-0421046 INIST</idno><idno type="RBID">Pascal:01-0421046</idno><idno type="wicri:Area/PascalFrancis/Corpus">000269</idno><idno type="wicri:Area/PascalFrancis/Curation">000026</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000289</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000289</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Cobalt spinel CoAl<sub>2</sub>O<sub>4</sub> via sol-gel process : elaboration and surface properties</title><author><name sortKey="Chemlal, S" sort="Chemlal, S" uniqKey="Chemlal S" first="S." last="Chemlal">S. Chemlal</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences</s1><s2>Dhar Mehraz Fès</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Dhar Mehraz Fès</wicri:noRegion></affiliation></author><author><name sortKey="Larbot, A" sort="Larbot, A" uniqKey="Larbot A" first="A." last="Larbot">A. Larbot</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Persin, M" sort="Persin, M" uniqKey="Persin M" first="M." last="Persin">M. Persin</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Sarrazin, J" sort="Sarrazin, J" uniqKey="Sarrazin J" first="J." last="Sarrazin">J. Sarrazin</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Sghyar, M" sort="Sghyar, M" uniqKey="Sghyar M" first="M." last="Sghyar">M. Sghyar</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences</s1><s2>Dhar Mehraz Fès</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Dhar Mehraz Fès</wicri:noRegion></affiliation></author><author><name sortKey="Rafiq, M" sort="Rafiq, M" uniqKey="Rafiq M" first="M." last="Rafiq">M. Rafiq</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences</s1><s2>Dhar Mehraz Fès</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Dhar Mehraz Fès</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Materials research bulletin</title><title level="j" type="abbreviated">Mater. res. bull.</title><idno type="ISSN">0025-5408</idno><imprint><date when="2000">2000</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Materials research bulletin</title><title level="j" type="abbreviated">Mater. res. bull.</title><idno type="ISSN">0025-5408</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aluminium oxide</term><term>Characterization</term><term>Cobalt oxide</term><term>Colloidal suspension</term><term>Crystallization</term><term>Destatization</term><term>Electrophoretic mobility</term><term>Experimental study</term><term>Heat treatment</term><term>Membrane</term><term>Morphology</term><term>Powder</term><term>Slip casting</term><term>Sol gel process</term><term>Spinels</term><term>Surface area</term><term>Surface charge</term><term>Thermal properties</term><term>Ultrafiltration</term><term>pH</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Poudre</term><term>Procédé sol gel</term><term>Suspension colloïdale</term><term>Déstatisation</term><term>Traitement thermique</term><term>Cristallisation</term><term>Spinelles</term><term>Aluminium oxyde</term><term>Cobalt oxyde</term><term>Caractérisation</term><term>Propriété thermique</term><term>Morphologie</term><term>Aire superficielle</term><term>Charge superficielle</term><term>pH</term><term>Mobilité électrophorétique</term><term>Coulée en barbotine</term><term>8270</term><term>8110D</term><term>Membrane</term><term>Ultrafiltration</term><term>CoAl2O4</term><term>Al Co O</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this work the preparation of cobalt spinel CoAl<sub>2</sub>O<sub>4</sub> is described. The technique of colloidal solution destabilization was used as the sol-gel process. The powder obtained from the dried gel was characterized by thermal analysis (thermogravimetric and differential), X-ray diffraction, infrared spectroscopy, and specific surface area measurement. Crystallization of CoAl<sub>2</sub>O<sub>4</sub> spinels occurs at about 400°C. The study of surface properties (surface charge and electrophoretic mobility) of the spinel powder fired at 600°C, in suspension in different electrolyte solutions (10<sup>-3</sup> molar ionic strength), shows that the spinel material charge depends on the pH of the solution. The spinel sol was used for the preparation of membrane by the slip-casting method.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0025-5408</s0></fA01><fA02 i1="01"><s0>MRBUAC</s0></fA02><fA03 i2="1"><s0>Mater. res. bull.</s0></fA03><fA05><s2>35</s2></fA05><fA06><s2>14-15</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Cobalt spinel CoAl<sub>2</sub>O<sub>4</sub> via sol-gel process : elaboration and surface properties</s1></fA08><fA11 i1="01" i2="1"><s1>CHEMLAL (S.)</s1></fA11><fA11 i1="02" i2="1"><s1>LARBOT (A.)</s1></fA11><fA11 i1="03" i2="1"><s1>PERSIN (M.)</s1></fA11><fA11 i1="04" i2="1"><s1>SARRAZIN (J.)</s1></fA11><fA11 i1="05" i2="1"><s1>SGHYAR (M.)</s1></fA11><fA11 i1="06" i2="1"><s1>RAFIQ (M.)</s1></fA11><fA14 i1="01"><s1>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences</s1><s2>Dhar Mehraz Fès</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></fA14><fA14 i1="02"><s1>Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></fA14><fA20><s1>2515-2523</s1></fA20><fA21><s1>2000</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>13343</s2><s5>354000097541290320</s5></fA43><fA44><s0>0000</s0><s1>© 2001 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>7 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>01-0421046</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Materials research bulletin</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>In this work the preparation of cobalt spinel CoAl<sub>2</sub>O<sub>4</sub> is described. The technique of colloidal solution destabilization was used as the sol-gel process. The powder obtained from the dried gel was characterized by thermal analysis (thermogravimetric and differential), X-ray diffraction, infrared spectroscopy, and specific surface area measurement. Crystallization of CoAl<sub>2</sub>O<sub>4</sub> spinels occurs at about 400°C. The study of surface properties (surface charge and electrophoretic mobility) of the spinel powder fired at 600°C, in suspension in different electrolyte solutions (10<sup>-3</sup> molar ionic strength), shows that the spinel material charge depends on the pH of the solution. The spinel sol was used for the preparation of membrane by the slip-casting method.</s0></fC01><fC02 i1="01" i2="X"><s0>001C01J07</s0></fC02><fC02 i1="02" i2="3"><s0>001B80A10D</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>Poudre</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Powder</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Polvo</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Procédé sol gel</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Sol gel process</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Procedimiento sol gel</s0><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Suspension colloïdale</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Colloidal suspension</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" 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oxide</s0><s5>09</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Aluminio óxido</s0><s5>09</s5></fC03><fC03 i1="10" i2="X" l="FRE"><s0>Cobalt oxyde</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="ENG"><s0>Cobalt oxide</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="SPA"><s0>Cobalto óxido</s0><s5>10</s5></fC03><fC03 i1="11" i2="X" l="FRE"><s0>Caractérisation</s0><s5>11</s5></fC03><fC03 i1="11" i2="X" l="ENG"><s0>Characterization</s0><s5>11</s5></fC03><fC03 i1="11" i2="X" l="SPA"><s0>Caracterización</s0><s5>11</s5></fC03><fC03 i1="12" i2="X" l="FRE"><s0>Propriété thermique</s0><s5>12</s5></fC03><fC03 i1="12" i2="X" l="ENG"><s0>Thermal properties</s0><s5>12</s5></fC03><fC03 i1="12" i2="X" l="SPA"><s0>Propiedad térmica</s0><s5>12</s5></fC03><fC03 i1="13" i2="X" l="FRE"><s0>Morphologie</s0><s5>13</s5></fC03><fC03 i1="13" i2="X" l="ENG"><s0>Morphology</s0><s5>13</s5></fC03><fC03 i1="13" i2="X" l="SPA"><s0>Morfología</s0><s5>13</s5></fC03><fC03 i1="14" i2="X" l="FRE"><s0>Aire superficielle</s0><s5>14</s5></fC03><fC03 i1="14" i2="X" l="ENG"><s0>Surface area</s0><s5>14</s5></fC03><fC03 i1="14" i2="X" l="SPA"><s0>Area superficial</s0><s5>14</s5></fC03><fC03 i1="15" i2="X" l="FRE"><s0>Charge superficielle</s0><s5>15</s5></fC03><fC03 i1="15" i2="X" l="ENG"><s0>Surface charge</s0><s5>15</s5></fC03><fC03 i1="15" i2="X" l="SPA"><s0>Carga superficial</s0><s5>15</s5></fC03><fC03 i1="16" i2="X" l="FRE"><s0>pH</s0><s5>16</s5></fC03><fC03 i1="16" i2="X" l="ENG"><s0>pH</s0><s5>16</s5></fC03><fC03 i1="16" i2="X" l="SPA"><s0>pH</s0><s5>16</s5></fC03><fC03 i1="17" i2="X" l="FRE"><s0>Mobilité électrophorétique</s0><s5>17</s5></fC03><fC03 i1="17" i2="X" l="ENG"><s0>Electrophoretic mobility</s0><s5>17</s5></fC03><fC03 i1="17" i2="X" l="SPA"><s0>Movilidad electroforética</s0><s5>17</s5></fC03><fC03 i1="18" i2="X" l="FRE"><s0>Coulée en barbotine</s0><s5>18</s5></fC03><fC03 i1="18" i2="X" l="ENG"><s0>Slip casting</s0><s5>18</s5></fC03><fC03 i1="18" i2="X" l="SPA"><s0>Colada en barbotina</s0><s5>18</s5></fC03><fC03 i1="19" i2="X" l="FRE"><s0>8270</s0><s2>PAC</s2><s4>INC</s4><s5>56</s5></fC03><fC03 i1="20" i2="X" l="FRE"><s0>8110D</s0><s2>PAC</s2><s4>INC</s4><s5>57</s5></fC03><fC03 i1="21" i2="X" l="FRE"><s0>Membrane</s0><s5>83</s5></fC03><fC03 i1="21" i2="X" l="ENG"><s0>Membrane</s0><s5>83</s5></fC03><fC03 i1="21" i2="X" l="SPA"><s0>Membrana</s0><s5>83</s5></fC03><fC03 i1="22" i2="X" l="FRE"><s0>Ultrafiltration</s0><s5>84</s5></fC03><fC03 i1="22" i2="X" l="ENG"><s0>Ultrafiltration</s0><s5>84</s5></fC03><fC03 i1="22" i2="X" l="SPA"><s0>Ultrafiltración</s0><s5>84</s5></fC03><fC03 i1="23" i2="X" l="FRE"><s0>CoAl2O4</s0><s4>INC</s4><s5>92</s5></fC03><fC03 i1="24" i2="X" l="FRE"><s0>Al Co O</s0><s4>INC</s4><s5>93</s5></fC03><fC07 i1="01" i2="X" l="FRE"><s0>Composé minéral</s0><s5>81</s5></fC07><fC07 i1="01" i2="X" l="ENG"><s0>Inorganic compound</s0><s5>81</s5></fC07><fC07 i1="01" i2="X" l="SPA"><s0>Compuesto inorgánico</s0><s5>81</s5></fC07><fC07 i1="02" i2="1" l="FRE"><s0>Métal transition composé</s0><s5>82</s5></fC07><fC07 i1="02" i2="1" l="ENG"><s0>Transition metal compounds</s0><s5>82</s5></fC07><fN21><s1>295</s1></fN21></pA></standard></inist><affiliations><list><country><li>France</li><li>Maroc</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Montpellier</li></settlement></list><tree><country name="Maroc"><noRegion><name sortKey="Chemlal, S" sort="Chemlal, S" uniqKey="Chemlal S" first="S." last="Chemlal">S. Chemlal</name></noRegion><name sortKey="Rafiq, M" sort="Rafiq, M" uniqKey="Rafiq M" first="M." last="Rafiq">M. Rafiq</name><name sortKey="Sghyar, M" sort="Sghyar, M" uniqKey="Sghyar M" first="M." last="Sghyar">M. Sghyar</name></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Larbot, A" sort="Larbot, A" uniqKey="Larbot A" first="A." last="Larbot">A. Larbot</name></region><name sortKey="Persin, M" sort="Persin, M" uniqKey="Persin M" first="M." last="Persin">M. Persin</name><name sortKey="Sarrazin, J" sort="Sarrazin, J" uniqKey="Sarrazin J" first="J." last="Sarrazin">J. Sarrazin</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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|area= CobaltMaghrebV1
|flux= PascalFrancis
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|texte= Cobalt spinel CoAl2O4 via sol-gel process : elaboration and surface properties
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