Study of the local structure of LiNi0.33+δMn0.33+δCo0.33-2δO2 (0.025 < δ ≤ 0.075) oxides
Identifieur interne : 000240 ( PascalFrancis/Curation ); précédent : 000239; suivant : 000241Study of the local structure of LiNi0.33+δMn0.33+δCo0.33-2δO2 (0.025 < δ ≤ 0.075) oxides
Auteurs : K. Ben-Kamel [Tunisie] ; N. Amdouni [Tunisie] ; A. Mauger [France] ; Cm. Julien [France]Source :
- Journal of alloys and compounds [ 0925-8388 ] ; 2012.
Descripteurs français
- Pascal (Inist)
- Structure locale, Procédé sol gel, Structure lamellaire, Mode vibration, Méthode Rietveld, Diffraction RX, Spectre Raman, Spectrométrie FTIR, Angle magique, Résonance magnétique nucléaire, Microscopie électronique transmission, Lithium Métal transition Oxyde Mixte, Nanoparticule, Réseau rhomboédrique, Cristal lamellaire, Nanocristal.
English descriptors
- KwdEn :
- Fourier-transformed infrared spectrometry, Lamellar structure, Layered crystals, Lithium Transition elements Oxides Mixed, Local structure, Magic angle, Nanocrystal, Nanoparticles, Nuclear magnetic resonance, Raman spectra, Rietveld method, Sol-gel process, Transmission electron microscopy, Trigonal lattices, Vibrational modes, XRD.
Abstract
A series of oxides of the composition LiNiy+δMny+δCoy-2δO2 (y=0.33; δ=0.025, 0.05, 0.075) were synthesized using the sol-gel method assisted by citric acid as chelating agent. The resulting nano-sized particles crystallize with a layered structure in the rhombohedral system. They exhibit an ordered rock-salt α-NaFeO2-type structure (R3m space group) having an interlayer spacing close to 0.47 nm. Long- and short-range structural properties were characterized using several techniques such as X-ray diffraction (XRD), Raman scattering (RS), Fourier transform infrared (FTIR) and 7Li magic angle spinning (MAS) NMR spectroscopy, high-resolution transmission electron microscopy (HRTEM) and energy dispersive analysis of X-rays (EDAX). Rietveld refinements of the XRD diagrams and NMR resonance integration show that the concentration of Ni2+ ions located onto Li-3b sites is lower than 3% for the three samples. HRTEM images show layered structure without dislocations. The role of the cobalt is investigated quantitatively. The results show that the increasing cobalt content induces better crystallinity, smaller cation mixing, and a change of particles morphology, from octahedron- to spherical-like shape with size in the range 200-350 nm.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Study of the local structure of LiNi<sub>0.33+δ</sub>Mn<sub>0.33+δ</sub>Co<sub>0.33-2δ</sub>O<sub>2</sub> (0.025 < δ ≤ 0.075) oxides</title><author><name sortKey="Ben Kamel, K" sort="Ben Kamel, K" uniqKey="Ben Kamel K" first="K." last="Ben-Kamel">K. Ben-Kamel</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Université Tunis-El Manar, U.R. Physico-Chimie des Matériaux Solides</s1><s2>1060 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Tunisie</country></affiliation></author><author><name sortKey="Amdouni, N" sort="Amdouni, N" uniqKey="Amdouni N" first="N." last="Amdouni">N. Amdouni</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Université Tunis-El Manar, U.R. Physico-Chimie des Matériaux Solides</s1><s2>1060 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Tunisie</country></affiliation></author><author><name sortKey="Mauger, A" sort="Mauger, A" uniqKey="Mauger A" first="A." last="Mauger">A. Mauger</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Université Pierre et Marie Curie-Paris-6, Institut de Minéralogie et Physique de la Matiere Condensée (IMPMC), 4 place Jussieu</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>3 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Julien, Cm" sort="Julien, Cm" uniqKey="Julien C" first="Cm." last="Julien">Cm. Julien</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Universite Pierre et Marie Curie-Paris-6, Laboratoire des Electrolytes, Colloïdes et Systèmes Analytiques (PECSA), 4 place Jussieu</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0217771</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0217771 INIST</idno><idno type="RBID">Pascal:12-0217771</idno><idno type="wicri:Area/PascalFrancis/Corpus">000055</idno><idno type="wicri:Area/PascalFrancis/Curation">000240</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Study of the local structure of LiNi<sub>0.33+δ</sub>Mn<sub>0.33+δ</sub>Co<sub>0.33-2δ</sub>O<sub>2</sub> (0.025 < δ ≤ 0.075) oxides</title><author><name sortKey="Ben Kamel, K" sort="Ben Kamel, K" uniqKey="Ben Kamel K" first="K." last="Ben-Kamel">K. Ben-Kamel</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Université Tunis-El Manar, U.R. Physico-Chimie des Matériaux Solides</s1><s2>1060 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Tunisie</country></affiliation></author><author><name sortKey="Amdouni, N" sort="Amdouni, N" uniqKey="Amdouni N" first="N." last="Amdouni">N. Amdouni</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Université Tunis-El Manar, U.R. Physico-Chimie des Matériaux Solides</s1><s2>1060 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Tunisie</country></affiliation></author><author><name sortKey="Mauger, A" sort="Mauger, A" uniqKey="Mauger A" first="A." last="Mauger">A. Mauger</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Université Pierre et Marie Curie-Paris-6, Institut de Minéralogie et Physique de la Matiere Condensée (IMPMC), 4 place Jussieu</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>3 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Julien, Cm" sort="Julien, Cm" uniqKey="Julien C" first="Cm." last="Julien">Cm. Julien</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Universite Pierre et Marie Curie-Paris-6, Laboratoire des Electrolytes, Colloïdes et Systèmes Analytiques (PECSA), 4 place Jussieu</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country></affiliation></author></analytic><series><title level="j" type="main">Journal of alloys and compounds</title><title level="j" type="abbreviated">J. alloys compd.</title><idno type="ISSN">0925-8388</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of alloys and compounds</title><title level="j" type="abbreviated">J. alloys compd.</title><idno type="ISSN">0925-8388</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Fourier-transformed infrared spectrometry</term><term>Lamellar structure</term><term>Layered crystals</term><term>Lithium Transition elements Oxides Mixed</term><term>Local structure</term><term>Magic angle</term><term>Nanocrystal</term><term>Nanoparticles</term><term>Nuclear magnetic resonance</term><term>Raman spectra</term><term>Rietveld method</term><term>Sol-gel process</term><term>Transmission electron microscopy</term><term>Trigonal lattices</term><term>Vibrational modes</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Structure locale</term><term>Procédé sol gel</term><term>Structure lamellaire</term><term>Mode vibration</term><term>Méthode Rietveld</term><term>Diffraction RX</term><term>Spectre Raman</term><term>Spectrométrie FTIR</term><term>Angle magique</term><term>Résonance magnétique nucléaire</term><term>Microscopie électronique transmission</term><term>Lithium Métal transition Oxyde Mixte</term><term>Nanoparticule</term><term>Réseau rhomboédrique</term><term>Cristal lamellaire</term><term>Nanocristal</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A series of oxides of the composition LiNi<sub>y+δ</sub>Mn<sub>y+δ</sub>Co<sub>y-2δ</sub>O<sub>2</sub> (y=0.33; δ=0.025, 0.05, 0.075) were synthesized using the sol-gel method assisted by citric acid as chelating agent. The resulting nano-sized particles crystallize with a layered structure in the rhombohedral system. They exhibit an ordered rock-salt α-NaFeO<sub>2</sub>-type structure (R3m space group) having an interlayer spacing close to 0.47 nm. Long- and short-range structural properties were characterized using several techniques such as X-ray diffraction (XRD), Raman scattering (RS), Fourier transform infrared (FTIR) and <sup>7</sup>Li magic angle spinning (MAS) NMR spectroscopy, high-resolution transmission electron microscopy (HRTEM) and energy dispersive analysis of X-rays (EDAX). Rietveld refinements of the XRD diagrams and NMR resonance integration show that the concentration of Ni<sup>2+</sup> ions located onto Li-3b sites is lower than 3% for the three samples. HRTEM images show layered structure without dislocations. The role of the cobalt is investigated quantitatively. The results show that the increasing cobalt content induces better crystallinity, smaller cation mixing, and a change of particles morphology, from octahedron- to spherical-like shape with size in the range 200-350 nm.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0925-8388</s0></fA01><fA03 i2="1"><s0>J. alloys compd.</s0></fA03><fA05><s2>528</s2></fA05><fA08 i1="01" i2="1" l="ENG"><s1>Study of the local structure of LiNi<sub>0.33+δ</sub>Mn<sub>0.33+δ</sub>Co<sub>0.33-2δ</sub>O<sub>2</sub> (0.025 < δ ≤ 0.075) oxides</s1></fA08><fA11 i1="01" i2="1"><s1>BEN-KAMEL (K.)</s1></fA11><fA11 i1="02" i2="1"><s1>AMDOUNI (N.)</s1></fA11><fA11 i1="03" i2="1"><s1>MAUGER (A.)</s1></fA11><fA11 i1="04" i2="1"><s1>JULIEN (Cm.)</s1></fA11><fA14 i1="01"><s1>Université Tunis-El Manar, U.R. Physico-Chimie des Matériaux Solides</s1><s2>1060 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Université Pierre et Marie Curie-Paris-6, Institut de Minéralogie et Physique de la Matiere Condensée (IMPMC), 4 place Jussieu</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>3 aut.</sZ></fA14><fA14 i1="03"><s1>Universite Pierre et Marie Curie-Paris-6, Laboratoire des Electrolytes, Colloïdes et Systèmes Analytiques (PECSA), 4 place Jussieu</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>4 aut.</sZ></fA14><fA20><s1>91-98</s1></fA20><fA21><s1>2012</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>1151</s2><s5>354000506954600160</s5></fA43><fA44><s0>0000</s0><s1>© 2012 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>36 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>12-0217771</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of alloys and compounds</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>A series of oxides of the composition LiNi<sub>y+δ</sub>Mn<sub>y+δ</sub>Co<sub>y-2δ</sub>O<sub>2</sub> (y=0.33; δ=0.025, 0.05, 0.075) were synthesized using the sol-gel method assisted by citric acid as chelating agent. The resulting nano-sized particles crystallize with a layered structure in the rhombohedral system. They exhibit an ordered rock-salt α-NaFeO<sub>2</sub>-type structure (R3m space group) having an interlayer spacing close to 0.47 nm. Long- and short-range structural properties were characterized using several techniques such as X-ray diffraction (XRD), Raman scattering (RS), Fourier transform infrared (FTIR) and <sup>7</sup>Li magic angle spinning (MAS) NMR spectroscopy, high-resolution transmission electron microscopy (HRTEM) and energy dispersive analysis of X-rays (EDAX). Rietveld refinements of the XRD diagrams and NMR resonance integration show that the concentration of Ni<sup>2+</sup> ions located onto Li-3b sites is lower than 3% for the three samples. HRTEM images show layered structure without dislocations. The role of the cobalt is investigated quantitatively. The results show that the increasing cobalt content induces better crystallinity, smaller cation mixing, and a change of particles morphology, from octahedron- to spherical-like shape with size in the range 200-350 nm.</s0></fC01><fC02 i1="01" i2="3"><s0>001B80A07B</s0></fC02><fC02 i1="02" i2="3"><s0>001B60A46</s0></fC02><fC02 i1="03" i2="3"><s0>001B60C22</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Structure locale</s0><s5>02</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Local structure</s0><s5>02</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Estructura local</s0><s5>02</s5></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Procédé sol gel</s0><s5>03</s5></fC03><fC03 i1="02" i2="3" l="ENG"><s0>Sol-gel process</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Structure lamellaire</s0><s5>04</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Lamellar structure</s0><s5>04</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Estructura lamelar</s0><s5>04</s5></fC03><fC03 i1="04" i2="3" l="FRE"><s0>Mode vibration</s0><s5>05</s5></fC03><fC03 i1="04" i2="3" l="ENG"><s0>Vibrational modes</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Méthode Rietveld</s0><s5>06</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Rietveld method</s0><s5>06</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Método Rietveld</s0><s5>06</s5></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Diffraction RX</s0><s5>07</s5></fC03><fC03 i1="06" i2="3" l="ENG"><s0>XRD</s0><s5>07</s5></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Spectre Raman</s0><s5>08</s5></fC03><fC03 i1="07" i2="3" l="ENG"><s0>Raman spectra</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="FRE"><s0>Spectrométrie FTIR</s0><s5>10</s5></fC03><fC03 i1="08" i2="X" l="ENG"><s0>Fourier-transformed infrared spectrometry</s0><s5>10</s5></fC03><fC03 i1="08" i2="X" l="SPA"><s0>Espectrometría FTIR</s0><s5>10</s5></fC03><fC03 i1="09" i2="3" l="FRE"><s0>Angle magique</s0><s5>11</s5></fC03><fC03 i1="09" i2="3" l="ENG"><s0>Magic angle</s0><s5>11</s5></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Résonance magnétique nucléaire</s0><s5>12</s5></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Nuclear magnetic resonance</s0><s5>12</s5></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Microscopie électronique transmission</s0><s5>13</s5></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Transmission electron microscopy</s0><s5>13</s5></fC03><fC03 i1="12" i2="X" l="FRE"><s0>Lithium Métal transition Oxyde Mixte</s0><s2>NC</s2><s2>NA</s2><s5>14</s5></fC03><fC03 i1="12" i2="X" l="ENG"><s0>Lithium Transition elements Oxides Mixed</s0><s2>NC</s2><s2>NA</s2><s5>14</s5></fC03><fC03 i1="12" i2="X" l="SPA"><s0>Mixto</s0><s2>NC</s2><s2>NA</s2><s5>14</s5></fC03><fC03 i1="13" i2="3" l="FRE"><s0>Nanoparticule</s0><s5>15</s5></fC03><fC03 i1="13" i2="3" l="ENG"><s0>Nanoparticles</s0><s5>15</s5></fC03><fC03 i1="14" i2="3" l="FRE"><s0>Réseau rhomboédrique</s0><s5>16</s5></fC03><fC03 i1="14" i2="3" l="ENG"><s0>Trigonal lattices</s0><s5>16</s5></fC03><fC03 i1="15" i2="3" l="FRE"><s0>Cristal lamellaire</s0><s5>17</s5></fC03><fC03 i1="15" i2="3" l="ENG"><s0>Layered crystals</s0><s5>17</s5></fC03><fC03 i1="16" i2="X" l="FRE"><s0>Nanocristal</s0><s5>18</s5></fC03><fC03 i1="16" i2="X" l="ENG"><s0>Nanocrystal</s0><s5>18</s5></fC03><fC03 i1="16" i2="X" l="SPA"><s0>Nanocristal</s0><s5>18</s5></fC03><fN21><s1>170</s1></fN21></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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