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A facile method for in-situ synthesis of SnO_2/graphene as a high performance anode material for lithium-ion batteries

机译：一种方便地原位合成SnO_2 /石墨烯作为锂离子电池高性能负极材料的方法

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摘要

A facile, moderate, and environment-friendly method form-situ preparation of SnO_2/graphene nanocom-posites (SnO_2/GNs) was proposed. The structures and morphology as well as electrochemical behaviors of SnO_2/GNs with varied proportions of SnO_2 and graphene were characterized by X-ray diffraction, Fourier transform infrared spectrometry, transmission electron microscopy and relevant electrochemical property tests. The results reveal that the ratios of SnO_2 to graphene have a significant effect on the structures and properties of SnO_2/GNs. SnO_2/GN-50 containing 50% SnO_2 delivers a high specific capacity of 540 mAh g~(-1) even after 90 cycles at a current density of 100 mA g~(-1), which is attributed to the synergis-tic effect of a unique combination of SnO_2 nanoparticles and graphene sheets, indicating that SnO_2/GNs might have a promising future as anode material in Li-ion batteries.
机译：提出了一种简便，适度，环保的SnO_2 /石墨烯纳米复合材料（SnO_2 / GNs）的原位制备方法。通过X射线衍射，傅里叶变换红外光谱，透射电镜和相关的电化学性能测试，对不同比例的SnO_2和石墨烯的SnO_2 / GNs的结构，形貌以及电化学行为进行了表征。结果表明，SnO_2与石墨烯的比例对SnO_2 / GNs的结构和性能有重要影响。含有50％SnO_2的SnO_2 / GN-50即使在100 mA g〜（-1）的电流密度下经过90次循环也能提供540 mAh g〜（-1）的高比容量，这归因于协同效应SnO_2纳米颗粒和石墨烯片的独特组合的研究表明，SnO_2 / GNs作为锂离子电池的负极材料可能具有广阔的发展前景。

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  • 来源
    《Applied Surface Science》 |2014年第1期|400-406|共7页
  • 作者

    Guiliang Wu; Mingbo Wu; Ding Wang; Linghong Yin; Jiashun Ye; Shenzhen Deng; Zhiyuan Zhu; Wenjun Ye; Zhongtao Li;

  • 作者单位

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

    School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;

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  • 正文语种 eng
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  • 关键词

    Facile method; SnO_2/graphene nanocomposites; Varied proportions; Synergistic effect; Li-ion batteries;

    机译：简便的方法SnO_2 /石墨烯纳米复合材料;不同的比例;协同效应;锂离子电池;

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