Core-shell Ni0.5TiOPO4/C composites as anode materials in Li ion batteries
Identifieur interne : 000366 ( Main/Exploration ); précédent : 000365; suivant : 000367Core-shell Ni0.5TiOPO4/C composites as anode materials in Li ion batteries
Auteurs : X. J. Zhang [République populaire de Chine] ; Y. Zhang [République populaire de Chine] ; Z. Zhoua [République populaire de Chine] ; J. P. Wei [République populaire de Chine] ; R. Essehli [France, Maroc] ; B. El Bali [Maroc]Source :
- Electrochimica acta [ 0013-4686 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Matériau composite, Anode, Matériau électrode, Préparation, Réaction état solide, Nickel Oxyde, Carbone, Titane Oxyde, Composé binaire, Composé ternaire, Phosphate, Traitement hydrothermal, Microscopie électronique balayage, Microscopie électronique transmission, Spectrométrie Raman, Cycle charge décharge, Accumulateur électrochimique, Anion minéral, Structure surface, Morphologie, Caractéristique électrique, Particule core-shell, Batterie lithium ion.
- Wicri :
- topic : Matériau composite, Carbone, Phosphate.
English descriptors
- KwdEn :
- Anode, Binary compound, Carbon, Composite material, Core-shell particle, Discharge charge cycle, Electrical characteristic, Electrode material, Hydrothermal treatment, Inorganic anion, Lithion ion batteries, Morphology, Nickel Oxides, Phosphates, Preparation, Raman spectrometry, Scanning electron microscopy, Secondary cell, Solid state reaction, Surface structure, Ternary compound, Titanium Oxides, Transmission electron microscopy.
Abstract
Pristine Ni0.5TiOPO4 was prepared via a traditional solid-state reaction, and then Nio.5TiOP04/C composites with core-shell nanostructures were synthesized by hydrothermally treating Ni0.5TiOPO4 in glucose solution. X-ray diffraction patterns indicate that Ni0.5TiOPO4/C crystallizes in monoclinic P21/c space group. Scanning electron microscopy and transmission electron microscopy show that the small particles with different sizes are coated with uniform carbon film of ˜3 nm in thickness. Raman spectroscopy also confirms the presence of carbon in the composites. Ni0.5TiOPO4/C composites presented a capacity of 276 mAh g-1 after 30 cycles at the current density of 42.7 mA g-1, much higher than that of pristine Ni0.5TiOPO4 (155mAhg-'). The improved electrochemical performances can be attributed to the existence of carbon shell.
Affiliations:
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El Bali</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Laboratory of Mineral Solid and Analytical Chemistry "LMSAC", Department of Chemistry, Faculty of Sciences, University Mohamed I, PO Box 624</s1><s2>60000 Oujda</s2><s3>MAR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>60000 Oujda</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">11-0340432</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 11-0340432 INIST</idno><idno type="RBID">Pascal:11-0340432</idno><idno type="wicri:Area/PascalFrancis/Corpus">000126</idno><idno type="wicri:Area/PascalFrancis/Curation">000315</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000130</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000130</idno><idno type="wicri:doubleKey">0013-4686:2011:Zhang X:core:shell:ni</idno><idno type="wicri:Area/Main/Merge">000375</idno><idno type="wicri:Area/Main/Curation">000366</idno><idno type="wicri:Area/Main/Exploration">000366</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Core-shell Ni<sub>0.5</sub>TiOPO<sub>4</sub>/C composites as anode materials in Li ion batteries</title><author><name sortKey="Zhang, X J" sort="Zhang, X J" uniqKey="Zhang X" first="X. J." last="Zhang">X. J. Zhang</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of New Energy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University</s1><s2>Tianjin 300071</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>République populaire de Chine</country><placeName><settlement type="city">Tianjin</settlement></placeName></affiliation></author><author><name sortKey="Zhang, Y" sort="Zhang, Y" uniqKey="Zhang Y" first="Y." last="Zhang">Y. Zhang</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of New Energy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University</s1><s2>Tianjin 300071</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>République populaire de Chine</country><placeName><settlement type="city">Tianjin</settlement></placeName></affiliation></author><author><name sortKey="Zhoua, Z" sort="Zhoua, Z" uniqKey="Zhoua Z" first="Z." last="Zhoua">Z. Zhoua</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of New Energy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University</s1><s2>Tianjin 300071</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>République populaire de Chine</country><placeName><settlement type="city">Tianjin</settlement></placeName></affiliation></author><author><name sortKey="Wei, J P" sort="Wei, J P" uniqKey="Wei J" first="J. P." last="Wei">J. P. Wei</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of New Energy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University</s1><s2>Tianjin 300071</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>République populaire de Chine</country><placeName><settlement type="city">Tianjin</settlement></placeName></affiliation></author><author><name sortKey="Essehli, R" sort="Essehli, R" uniqKey="Essehli R" first="R." last="Essehli">R. Essehli</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>SUBATECH, Unité Mixte de Recherche 6457, École des mines de Nantes, CNRS/IN2P3, Université de Nantes, BP20722</s1><s2>44307 Nantes</s2><s3>FRA</s3><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Pays de la Loire</region><settlement type="city">Nantes</settlement></placeName><orgName type="university">Université de Nantes</orgName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Laboratory of Mineral Solid and Analytical Chemistry "LMSAC", Department of Chemistry, Faculty of Sciences, University Mohamed I, PO Box 624</s1><s2>60000 Oujda</s2><s3>MAR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>60000 Oujda</wicri:noRegion></affiliation></author><author><name sortKey="El Bali, B" sort="El Bali, B" uniqKey="El Bali B" first="B." last="El Bali">B. El Bali</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Laboratory of Mineral Solid and Analytical Chemistry "LMSAC", Department of Chemistry, Faculty of Sciences, University Mohamed I, PO Box 624</s1><s2>60000 Oujda</s2><s3>MAR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>60000 Oujda</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Electrochimica acta</title><title level="j" type="abbreviated">Electrochim. acta</title><idno type="ISSN">0013-4686</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Electrochimica acta</title><title level="j" type="abbreviated">Electrochim. acta</title><idno type="ISSN">0013-4686</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anode</term><term>Binary compound</term><term>Carbon</term><term>Composite material</term><term>Core-shell particle</term><term>Discharge charge cycle</term><term>Electrical characteristic</term><term>Electrode material</term><term>Hydrothermal treatment</term><term>Inorganic anion</term><term>Lithion ion batteries</term><term>Morphology</term><term>Nickel Oxides</term><term>Phosphates</term><term>Preparation</term><term>Raman spectrometry</term><term>Scanning electron microscopy</term><term>Secondary cell</term><term>Solid state reaction</term><term>Surface structure</term><term>Ternary compound</term><term>Titanium Oxides</term><term>Transmission electron microscopy</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Matériau composite</term><term>Anode</term><term>Matériau électrode</term><term>Préparation</term><term>Réaction état solide</term><term>Nickel Oxyde</term><term>Carbone</term><term>Titane Oxyde</term><term>Composé binaire</term><term>Composé ternaire</term><term>Phosphate</term><term>Traitement hydrothermal</term><term>Microscopie électronique balayage</term><term>Microscopie électronique transmission</term><term>Spectrométrie Raman</term><term>Cycle charge décharge</term><term>Accumulateur électrochimique</term><term>Anion minéral</term><term>Structure surface</term><term>Morphologie</term><term>Caractéristique électrique</term><term>Particule core-shell</term><term>Batterie lithium ion</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Matériau composite</term><term>Carbone</term><term>Phosphate</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Pristine Ni<sub>0.5</sub>TiOPO<sub>4</sub> was prepared via a traditional solid-state reaction, and then Ni<sub>o</sub>.<sub>5</sub>TiOP0<sub>4/</sub>C composites with core-shell nanostructures were synthesized by hydrothermally treating Ni<sub>0.5</sub>TiOPO<sub>4</sub> in glucose solution. X-ray diffraction patterns indicate that Ni<sub>0.5</sub>TiOPO<sub>4</sub>/C crystallizes in monoclinic P2<sub>1</sub>/c space group. Scanning electron microscopy and transmission electron microscopy show that the small particles with different sizes are coated with uniform carbon film of ˜3 nm in thickness. Raman spectroscopy also confirms the presence of carbon in the composites. Ni<sub>0.5</sub>TiOPO<sub>4</sub>/C composites presented a capacity of 276 mAh g<sup>-1</sup> after 30 cycles at the current density of 42.7 mA g<sup>-1</sup>, much higher than that of pristine Ni<sub>0.5</sub>TiOPO<sub>4</sub> (155mAhg-'). The improved electrochemical performances can be attributed to the existence of carbon shell.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li><li>République populaire de Chine</li></country><region><li>Pays de la Loire</li></region><settlement><li>Nantes</li><li>Tianjin</li></settlement><orgName><li>Université de Nantes</li></orgName></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Zhang, X J" sort="Zhang, X J" uniqKey="Zhang X" first="X. J." last="Zhang">X. J. Zhang</name></noRegion><name sortKey="Wei, J P" sort="Wei, J P" uniqKey="Wei J" first="J. P." last="Wei">J. P. Wei</name><name sortKey="Zhang, Y" sort="Zhang, Y" uniqKey="Zhang Y" first="Y." last="Zhang">Y. Zhang</name><name sortKey="Zhoua, Z" sort="Zhoua, Z" uniqKey="Zhoua Z" first="Z." last="Zhoua">Z. Zhoua</name></country><country name="France"><region name="Pays de la Loire"><name sortKey="Essehli, R" sort="Essehli, R" uniqKey="Essehli R" first="R." last="Essehli">R. Essehli</name></region></country><country name="Maroc"><noRegion><name sortKey="Essehli, R" sort="Essehli, R" uniqKey="Essehli R" first="R." last="Essehli">R. Essehli</name></noRegion><name sortKey="El Bali, B" sort="El Bali, B" uniqKey="El Bali B" first="B." last="El Bali">B. El Bali</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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