Cobalt spinel CoAl2O4 via sol-gel process : elaboration and surface properties
Identifieur interne : 000269 ( PascalFrancis/Corpus ); précédent : 000268; suivant : 000270Cobalt spinel CoAl2O4 via sol-gel process : elaboration and surface properties
Auteurs : S. Chemlal ; A. Larbot ; M. Persin ; J. Sarrazin ; M. Sghyar ; M. RafiqSource :
- 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.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 01-0421046 INIST |
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ET : | Cobalt spinel CoAl2O4 via sol-gel process : elaboration and surface properties |
AU : | CHEMLAL (S.); LARBOT (A.); PERSIN (M.); SARRAZIN (J.); SGHYAR (M.); RAFIQ (M.) |
AF : | Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences/Dhar Mehraz Fès/Maroc (1 aut., 5 aut., 6 aut.); Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale/34296 Montpellier/France (2 aut., 3 aut., 4 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Materials research bulletin; ISSN 0025-5408; Coden MRBUAC; Etats-Unis; Da. 2000; Vol. 35; No. 14-15; Pp. 2515-2523; Bibl. 7 ref. |
LA : | Anglais |
EA : | 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. |
CC : | 001C01J07; 001B80A10D |
FD : | 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 |
FG : | Composé minéral; Métal transition composé |
ED : | Experimental study; Powder; Sol gel process; Colloidal suspension; Destatization; Heat treatment; Crystallization; Spinels; Aluminium oxide; Cobalt oxide; Characterization; Thermal properties; Morphology; Surface area; Surface charge; pH; Electrophoretic mobility; Slip casting; Membrane; Ultrafiltration |
EG : | Inorganic compound; Transition metal compounds |
SD : | Estudio experimental; Polvo; Procedimiento sol gel; Suspensión coloidal; Destatización; Tratamiento térmico; Cristalización; Espinelas; Aluminio óxido; Cobalto óxido; Caracterización; Propiedad térmica; Morfología; Area superficial; Carga superficial; pH; Movilidad electroforética; Colada en barbotina; Membrana; Ultrafiltración |
LO : | INIST-13343.354000097541290320 |
ID : | 01-0421046 |
Links to Exploration step
Pascal:01-0421046Le document en format XML
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O<sub>4</sub>
via sol-gel process : elaboration and surface properties</title>
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O<sub>4</sub>
via sol-gel process : elaboration and surface properties</title>
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<term>Traitement thermique</term>
<term>Cristallisation</term>
<term>Spinelles</term>
<term>Aluminium oxyde</term>
<term>Cobalt oxyde</term>
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<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>
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via sol-gel process : elaboration and surface properties</s1>
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<fA14 i1="01"><s1>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences</s1>
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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>
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<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>
<server><NO>PASCAL 01-0421046 INIST</NO>
<ET>Cobalt spinel CoAl<sub>2</sub>
O<sub>4</sub>
via sol-gel process : elaboration and surface properties</ET>
<AU>CHEMLAL (S.); LARBOT (A.); PERSIN (M.); SARRAZIN (J.); SGHYAR (M.); RAFIQ (M.)</AU>
<AF>Laboratoire des Matériaux et Protection de l'Environnement, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences/Dhar Mehraz Fès/Maroc (1 aut., 5 aut., 6 aut.); Laboratoire des Matériaux et Procédés Membranaires, UMR 5635, CNRS, ENSCM, UMII, ENSCM, 8 rue de l'Ecole Normale/34296 Montpellier/France (2 aut., 3 aut., 4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Materials research bulletin; ISSN 0025-5408; Coden MRBUAC; Etats-Unis; Da. 2000; Vol. 35; No. 14-15; Pp. 2515-2523; Bibl. 7 ref.</SO>
<LA>Anglais</LA>
<EA>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.</EA>
<CC>001C01J07; 001B80A10D</CC>
<FD>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</FD>
<FG>Composé minéral; Métal transition composé</FG>
<ED>Experimental study; Powder; Sol gel process; Colloidal suspension; Destatization; Heat treatment; Crystallization; Spinels; Aluminium oxide; Cobalt oxide; Characterization; Thermal properties; Morphology; Surface area; Surface charge; pH; Electrophoretic mobility; Slip casting; Membrane; Ultrafiltration</ED>
<EG>Inorganic compound; Transition metal compounds</EG>
<SD>Estudio experimental; Polvo; Procedimiento sol gel; Suspensión coloidal; Destatización; Tratamiento térmico; Cristalización; Espinelas; Aluminio óxido; Cobalto óxido; Caracterización; Propiedad térmica; Morfología; Area superficial; Carga superficial; pH; Movilidad electroforética; Colada en barbotina; Membrana; Ultrafiltración</SD>
<LO>INIST-13343.354000097541290320</LO>
<ID>01-0421046</ID>
</server>
</inist>
</record>
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