LiFePO 4 nanoparticles encapsulated in graphene-containing carbon nanofibers for use as energy storage materials
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Bildiri Türü Tebliğ/Bildiri Bildiri Dili İngilizce
Bildiri Alt Türü
Bildiri Niteliği Web of Science Kapsamındaki Kongre/Sempozyum
DOI Numarası 10.1063/1.3690936
Kongre Adı Journal of Renewable and Sustainable Energy
Kongre Tarihi /
Basıldığı Ülke Fransa Basıldığı Şehir Aix en Provence
UAK Araştırma Alanları
Tekstil Bilimi
Özet
LiFePO 4/graphene/C composite nanofibers, in which LiFePO 4 nanoparticles were encapsulated in graphene-containing carbon nanofiber matrix, were synthesized by using a combination of electrospinning and sol-gel techniques. Polyacrylonitrile (PAN) was used as the electrospinning media and the carbon source. Graphene was incorporated in order to increase the conductivity of the composite. PAN was dissolved in N,N-dimethylformamide (DMF). LiFePO 4 precursor and graphene were dispersed in DMF separately and were mixed with PAN solution before electrospinning. Electrospun fibers were heat-treated to obtain LiFePO 4/graphene/C composite nanofibers. The structure of LiFePO 4/graphene/C composite nanofibers was determined by X-ray diffraction analysis. The surface morphology and microstructure of LiFePO 4/graphene/C composite nanofibers were characterized using scanning electron microscopy and transmission electron microscopy. Electrochemical performance of LiFePO 4/graphene/C composite nanofibers was evaluated in coin-type cells. Graphene flakes were found to be well-dispersed in the carbonaceous matrix and increased the electrochemical performance of the composite nanofibers. As a result, cells containing LiFePO 4/graphene/C composite nanofiber cathodes showed good electrochemical performance, in terms of capacity, cycle life, and rate capability. © 2012 American Institute of Physics.
Anahtar Kelimeler
crystal microstructure | electrical conductivity | electrochemistry | electrospinning | graphene | iron compounds | lithium compounds | nanocomposites | nanofabrication | nanofibres | nanoparticles | scanning electron microscopy | sol-gel processing | surface morphology | transmission electron microscopy | X-ray diffraction
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 26
Scopus 33
Google Scholar 50
LiFePO 4 nanoparticles encapsulated in graphene-containing carbon nanofibers for use as energy storage materials

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  • Yalova Üniversitesi Rektörlüğü, Bahçelievler Mah. Çınarcık Yolu Caddesi No: 26 Merkez - YALOVA, 77200
  • unis@yalova.edu.tr 0226 815 50 00
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