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首页> 外文期刊>Nanotechnology >In situ synthesized SnO2 nanorod/reduced graphene oxide low-dimensional structure for enhanced lithium storage
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In situ synthesized SnO2 nanorod/reduced graphene oxide low-dimensional structure for enhanced lithium storage

机译：原位合成的SnO2纳米棒/降低的石墨烯氧化物低维结构，用于增强锂储存

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摘要

A unique SnO2 nanorod (NR)/reduced graphene oxide (RGO) composite morphology has been synthesized using the in situ hydrothermal method, for use as an anode material in lithium-ion batteries. The SnO2 NR adhering to the RGO exhibits a length of 250-400 nm and a diameter of 60-80 nm without any obvious aggregation. The initial discharge/charge capacities of the SnO2 NR/RGO composite are 1761.3 mAh g(-1) and 1233.1 mAh g(-1), with a coulombic efficiency (CE) of 70% under a current density of 200 mA g(-1), and a final capacity of 1101 mAh g(-1) after 50 cycles. The rate capability of the SnO2 NR/RGO is also improved compared to that of bare SnO2 NR. The superior electrochemical performance is ascribed to the special morphology of the SnO2 NRs-which plays a role in shorting the transmission path- and the sheet-like 2D graphene, which prevents the agglomeration of SnO2 and enhances conductivity during the electrochemical reaction of SnO2 NR/RGO.
机译：使用原位水热法合成了一种独特的SnO2纳米棒（NR）/降低的氧化石墨烯（RGO）复合形态，用作锂离子电池中的阳极材料。 粘附在RGO上的SnO2 NR呈现为250-400nm的长度，直径为60-80nm，没有任何明显的聚集。 SnO2 NR / RGO复合材料的初始放电/充电容量为1761.3mAhg（-1）和1233.1mAhg（-1），在电流密度为200 mA g（ - ）的水库仑效率（Ce）为70％（ - 1），50次循环后的1101mAhg（-1）的最终容量。 与裸SnO2 NR相比，SnO2 NR / Rgo的速率能力也得到改善。 卓越的电化学性能归因于SnO2 NRS的特殊形态 - 在短路透射路径和片状2D石墨烯中起作用的作用，这防止了SnO2的附聚并增强了SnO2 NR的电化学反应期间的导电性。 rgo。

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  • 来源
    《Nanotechnology》 |2018年第10期|共7页
  • 作者

    Zhang Wei; Xiao Xuezhang; Zhang Yiwen; Li Junpeng; Zhong Jiayi; Li Meng; Fan Xiulin; Wang Chuntao; Chen Lixin;

  • 作者单位

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Univ Maryland Dept Chem &

    Biomol Engn College Pk MD 20742 USA;

    Zhejiang Ocean Univ Coll Naval Architecture &

    Mech Elect Engn Zhoushan 316000 Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    lithium-ion batteries; SnO2-based; nanorod; in situ; electrochemical; graphene;

    机译：锂离子电池;基于SnO2;纳米棒;原位;电化学;石墨烯;

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