Structural and electrical changes in NdSrNiO4-δ by substitute nickel with copper
Identifieur interne : 000902 ( Main/Exploration ); précédent : 000901; suivant : 000903Structural and electrical changes in NdSrNiO4-δ by substitute nickel with copper
Auteurs : Hanèn Chaker [Tunisie] ; T. Roisnel [France] ; M. Potel [France] ; R. Ben Hassen [Tunisie]Source :
- Journal of solid state chemistry : (Print) [ 0022-4596 ] ; 2004.
Descripteurs français
- Pascal (Inist)
- Etude expérimentale, Effet composition, Diffraction RX, Conductivité électrique, Stoechiométrie, Thermogravimétrie, Microstructure, Effet Jahn Teller, Valence mixte, Perte poids, Dépendance température, Microscopie électronique balayage, Semiconducteur, Néodyme oxyde, Strontium oxyde, Nickel oxyde, Composé quaternaire, Réseau quadratique, Solution solide, NdSrNiO4-δ, Nd Ni O Sr, 6166F, 7280J.
English descriptors
- KwdEn :
- Composition effect, Electrical conductivity, Experimental study, Jahn-Teller effect, Microstructure, Mixed valence, Neodymium oxides, Nickel oxides, Quaternary compounds, Scanning electron microscopy, Semiconductor materials, Solid solutions, Stoichiometry, Strontium oxides, Temperature dependence, Tetragonal lattices, Thermogravimetry, Weight loss, XRD.
Abstract
A novel series of the formula NdSrNi1-xCuxO4-δ were synthesized for various values of x ranging from 0 to 1 in 1 atm of O2 gas flow using conventional solid-state methods and were characterized by powder X-ray diffraction and electrical resistivity measurements. The compounds have been shown to adopt the K2NiF4-type structure. The oxygen stoichiometry of the compounds was determined from thermo-gravimetric analysis (TGA). An analysis of the micro-structure of the neodymium strontium nickel copper oxide is described. All the samples were semi-conducting from room temperature down to 77 K. The effect of Cu2+ incorporation on the structural and electrical properties of NdSrNi1-xCuxO4-δ, 0≤x≤1, are discussed in terms of Jahn-Teller distortion of the (Ni/Cu)O6 octahedra and mixed valence character of copper.
Affiliations:
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Potel</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR 6511 CNRS-Université de Rennes 1, Institut de Chimie de Rennes, Avenue du Général Leclerc</s1><s2>35042 Rennes</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Région Bretagne</region><settlement type="city">Rennes</settlement></placeName><orgName type="university">Université de Rennes 1</orgName></affiliation></author><author><name sortKey="Ben Hassen, R" sort="Ben Hassen, R" uniqKey="Ben Hassen R" first="R." last="Ben Hassen">R. Ben Hassen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Unité de Recherche de Chimie des Matériaux, Faculté des Sciences de Sfax B.P. 802, Universite de Sfax</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">05-0070625</idno><date when="2004">2004</date><idno type="stanalyst">PASCAL 05-0070625 INIST</idno><idno type="RBID">Pascal:05-0070625</idno><idno type="wicri:Area/PascalFrancis/Corpus">000329</idno><idno type="wicri:Area/PascalFrancis/Curation">000112</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000337</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000337</idno><idno type="wicri:doubleKey">0022-4596:2004:Chaker H:structural:and:electrical</idno><idno type="wicri:Area/Main/Merge">000923</idno><idno type="wicri:Area/Main/Curation">000902</idno><idno type="wicri:Area/Main/Exploration">000902</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Structural and electrical changes in NdSrNiO<sub>4-δ</sub> by substitute nickel with copper</title><author><name sortKey="Chaker, Hanen" sort="Chaker, Hanen" uniqKey="Chaker H" first="Hanèn" last="Chaker">Hanèn Chaker</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Unité de Recherche de Chimie des Matériaux, Faculté des Sciences de Sfax B.P. 802, Universite de Sfax</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author><author><name sortKey="Roisnel, T" sort="Roisnel, T" uniqKey="Roisnel T" first="T." last="Roisnel">T. Roisnel</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR 6511 CNRS-Université de Rennes 1, Institut de Chimie de Rennes, Avenue du Général Leclerc</s1><s2>35042 Rennes</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Région Bretagne</region><settlement type="city">Rennes</settlement></placeName><orgName type="university">Université de Rennes 1</orgName></affiliation></author><author><name sortKey="Potel, M" sort="Potel, M" uniqKey="Potel M" first="M." last="Potel">M. Potel</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR 6511 CNRS-Université de Rennes 1, Institut de Chimie de Rennes, Avenue du Général Leclerc</s1><s2>35042 Rennes</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Région Bretagne</region><settlement type="city">Rennes</settlement></placeName><orgName type="university">Université de Rennes 1</orgName></affiliation></author><author><name sortKey="Ben Hassen, R" sort="Ben Hassen, R" uniqKey="Ben Hassen R" first="R." last="Ben Hassen">R. Ben Hassen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Unité de Recherche de Chimie des Matériaux, Faculté des Sciences de Sfax B.P. 802, Universite de Sfax</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of solid state chemistry : (Print)</title><title level="j" type="abbreviated">J. solid state chem. : (Print)</title><idno type="ISSN">0022-4596</idno><imprint><date when="2004">2004</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of solid state chemistry : (Print)</title><title level="j" type="abbreviated">J. solid state chem. : (Print)</title><idno type="ISSN">0022-4596</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Composition effect</term><term>Electrical conductivity</term><term>Experimental study</term><term>Jahn-Teller effect</term><term>Microstructure</term><term>Mixed valence</term><term>Neodymium oxides</term><term>Nickel oxides</term><term>Quaternary compounds</term><term>Scanning electron microscopy</term><term>Semiconductor materials</term><term>Solid solutions</term><term>Stoichiometry</term><term>Strontium oxides</term><term>Temperature dependence</term><term>Tetragonal lattices</term><term>Thermogravimetry</term><term>Weight loss</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Effet composition</term><term>Diffraction RX</term><term>Conductivité électrique</term><term>Stoechiométrie</term><term>Thermogravimétrie</term><term>Microstructure</term><term>Effet Jahn Teller</term><term>Valence mixte</term><term>Perte poids</term><term>Dépendance température</term><term>Microscopie électronique balayage</term><term>Semiconducteur</term><term>Néodyme oxyde</term><term>Strontium oxyde</term><term>Nickel oxyde</term><term>Composé quaternaire</term><term>Réseau quadratique</term><term>Solution solide</term><term>NdSrNiO4-δ</term><term>Nd Ni O Sr</term><term>6166F</term><term>7280J</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A novel series of the formula NdSrNi<sub>1-x</sub>Cu<sub>x</sub>O<sub>4-δ</sub> were synthesized for various values of x ranging from 0 to 1 in 1 atm of O<sub>2</sub> gas flow using conventional solid-state methods and were characterized by powder X-ray diffraction and electrical resistivity measurements. The compounds have been shown to adopt the K<sub>2</sub>NiF<sub>4</sub>-type structure. The oxygen stoichiometry of the compounds was determined from thermo-gravimetric analysis (TGA). An analysis of the micro-structure of the neodymium strontium nickel copper oxide is described. All the samples were semi-conducting from room temperature down to 77 K. The effect of Cu<sup>2+</sup> incorporation on the structural and electrical properties of NdSrNi<sub>1-x</sub>Cu<sub>x</sub>O<sub>4-δ</sub>, 0≤x≤1, are discussed in terms of Jahn-Teller distortion of the (Ni/Cu)O<sub>6</sub> octahedra and mixed valence character of copper.</div></front></TEI><affiliations><list><country><li>France</li><li>Tunisie</li></country><region><li>Région Bretagne</li></region><settlement><li>Rennes</li></settlement><orgName><li>Université de Rennes 1</li></orgName></list><tree><country name="Tunisie"><noRegion><name sortKey="Chaker, Hanen" sort="Chaker, Hanen" uniqKey="Chaker H" first="Hanèn" last="Chaker">Hanèn Chaker</name></noRegion><name sortKey="Ben Hassen, R" sort="Ben Hassen, R" uniqKey="Ben Hassen R" first="R." last="Ben Hassen">R. Ben Hassen</name></country><country name="France"><region name="Région Bretagne"><name sortKey="Roisnel, T" sort="Roisnel, T" uniqKey="Roisnel T" first="T." last="Roisnel">T. Roisnel</name></region><name sortKey="Potel, M" sort="Potel, M" uniqKey="Potel M" first="M." last="Potel">M. Potel</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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