Improved electrochemical performance in nanoengineered pomegranate-shaped Fe₃O₄/RGO nanohybrids anode material

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• 作者：Yuzhi Jiao ; Haitao Zhang ; Tao Dong ; Peng Shen ; Yingjun Cai…
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：52
• 期：6
• 页码：3233-3243
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics;
• 出版者：Springer US
• ISSN：1573-4803
• 卷排序：52

文摘

Pomegranate-shaped Fe₃O₄/RGO nanohybrids were prepared via an ethylene glycol-mediated solvothermal method. Their morphology and structure were investigated by different characterization techniques. The red shift in FTIR and Raman spectra of nanohybrids demonstrated the existence of interfacial interactions between Fe₃O₄ and RGO. As anode material for lithium-ion battery, these nanohybrids exhibited elongated cycling stability and enhanced reversible capacity compared with bare Fe₃O₄ nanoparticles and mixture (Fe₃O₄ + RGO). The initial capacity of the nanohybrids could reach to 1266 mAh g−1 and remained 992 mAh g−1 after 100 cycles at 150 mAh g−1. Their cells manifested an outstanding rate capability of 384 mAh g−1 at 5.0 °C. The relationships between microstructure and performance were carefully exploited to obtain key factors that are helpful for design and construction of hybridized materials with improved electrochemical performance.