Molten synthesis of ZnO.Fe₃O₄ and Fe₂O₃ and its electrochemical performance

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• 作者：M.V. Reddy ; Christie Thomas Cherian ; Kannan Ramanathan ; Kevin Chee Wei Jie ; Tew You Wen Daryl ; Tan Yi Hao ; S. Adams ; K.P. Loh ; B.V.R. Chowdari
• 关键词：ZnO.Fe3O4 ; Fe2O3 ; Molten salt method ; Anodes ; Electrochemical properties
• 刊名：Electrochimica Acta
• 出版年：1 February, 2014
• 年：2014
• 卷：118
• 期：Complete
• 页码：75-80
• 全文大小：1356 K

文摘

Fe₂O₃ and ZnO.Fe₃O₄ hybrids has been synthesised by molten salt method and tested as anode material for Li-ion batteries. The crystal structure and phase purity was evaluated by X-ray diffraction and the morphology of the final powders was examined by the Scanning electron microscopy. The Li-cycling properties of Fe₂O₃ and ZnO-Fe₃O₄ were studied by cyclic voltammery (58 渭V s^鈭?) and galvanostatic discharge-charge cycling in the voltage range, 0.005- 3 V at a current of 60 mA g^鈭?. The Fe₂O₃ samples prepared at 280 掳C and 900 掳C showed stable reversible capacities of 600 and 620 mAhg^鈭? at the end of 50 cycles respectively. On the other hand, ZnO.Fe₃O₄ hybrids showed improved and stable capacity of 820 mAh g^鈭? at the end of the 50th cycle.