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  Journal of Nanoscience Letters 2013, 3: 30
  Research Article
 
Preparation and electrochemical performances of carbon-coated MoO3 cathode materials for lithium ion batteries
  Y. Jing, L. W. Su, M. Hu, J. X. Li, Z. Zhou  
     
Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China
   
  Abstract  
  Molybdenum trioxide (MoO3) was prepared and further coated with carbon by using malic acid as carbon source through hydrothermal treatment. The obtained MoO3 consisting of numerous nanofibers (50~80 nm in diameter), was identified with mesoporous characteristics, and then modified with well-proportioned carbon layers of ~10 nm in thickness. The electrochemical performances of bare and C-coated MoO3 were compared as cathode materials in Li test cells. Electrochemical measurements disclosed significant enhancement in the electrochemical performances of C-coated MoO3, and also the pseudocapacitive effect of nanostructures brought high-rate capability to the electrode materials. Carbon-coated nanostructures can effectively improve the electrochemical performances of Li ion battery materials.
     
  Keywords  
  MoO3; Mesoporous; Cathode; Li ion batteries; Pseudocapacitive effect  
     
   
   
   
   
     

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