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Na2 FePO4 F/Biocarbon Nanocomposite Hollow Microspheres Derived from Biological Cell Template as High-Performance Cathode Material for Sodium-Ion Batteries.
Li, Haiming; Wang, Tailin; Wang, Xue; Li, Guangda; Shen, Jianxing; Chai, Jinling.
Afiliación
  • Li H; College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, P. R. China.
  • Wang T; Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province, Qilu University of Technology, Shandong Academy of Sciences), Jinan, 250353, P. R. China.
  • Wang X; Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province, Qilu University of Technology, Shandong Academy of Sciences), Jinan, 250353, P. R. China.
  • Li G; Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province, Qilu University of Technology, Shandong Academy of Sciences), Jinan, 250353, P. R. China.
  • Shen J; Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province, Qilu University of Technology, Shandong Academy of Sciences), Jinan, 250353, P. R. China.
  • Chai J; Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province, Qilu University of Technology, Shandong Academy of Sciences), Jinan, 250353, P. R. China.
Chemistry ; 27(35): 9022-9030, 2021 Jun 21.
Article en En | MEDLINE | ID: mdl-33780565
We have successfully synthesized Na2 FePO4 F/biocarbon nanocomposite hollow microspheres from FeIII precursor as cathodes for sodium-ion batteries through self-assembly of yeast cell biotemplate and sol-gel technology. The carbon coating on the nanoparticle surface with a mesoporous structure enhances electron diffusion into Na2 FePO4 F crystal particles. The improved electrochemical performance of Na2 FePO4 F/biocarbon nanocomposites is attributed to the larger electrode-electrolyte contact area and more active sites for Na+ on the surface of hollow microspheres compared with those of Na2 FePO4 F/C. The Na2 FePO4 F/biocarbon nanocomposite exhibits a high initial discharge capacity of 114.3 mAh g-1 at 0.1 C, long-cycle stability with a capacity retention of 74.3 % after 500 cycles at 5 C, and excellent rate capability (70.2 mAh g-1 at 5 C) compared with Na2 FePO4 F/C. This novel nanocomposite hollow microsphere structure is suitable for improving the property of other cathode materials for high-power batteries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sodio / Nanocompuestos Idioma: En Revista: Chemistry Asunto de la revista: QUIMICA Año: 2021 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sodio / Nanocompuestos Idioma: En Revista: Chemistry Asunto de la revista: QUIMICA Año: 2021 Tipo del documento: Article Pais de publicación: Alemania