Facile Synthesis of Ni_xZn_1−xFe₂O₄ (x=0, 0.25, 0.5, 0.75, 1) as Anode Materials for Lithium Storage

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• 作者：Dr. Linlin Li ; Prof. Bo Jin ; Prof. Xingyou Lang ; Prof. Chuncheng Yang ; Prof. Wang Gao ; Prof. Yongfu Zhu ; Shixue Dou and Prof. Qing Jiang
• 刊名：ChemPlusChem
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：81
• 期：11
• 页码：1174-1181
• 全文大小：2530K
• ISSN：2192-6506

文摘

Ni_xZn_1−xFe₂O₄ (x=0, 0.25, 0.5, 0.75, 1) compounds were prepared by a hydrothermal method and subsequent heat treatment. The physical characteristics of the samples were investigated by field-emission SEM, XRD, X-ray photoelectron spectroscopy, and TEM. The electrochemical properties of Ni_xZn_1−xFe₂O₄ (x=0, 0.25, 0.5, 0.75, 1) as anode materials were tested for lithium-ion batteries. The lithium-storage properties of the electrodes were assessed by cyclic voltammetry and galvanostatic cycling. Among the five samples, Ni_0.25Zn_0.75Fe₂O₄ shows good electrochemical performance with a discharge capacity of 1488 mAh g⁻¹ in the initial cycle and 856 mAh g⁻¹ after 100 cycles.