Microwave hydrothermal synthesis of high performance tin-graphene nanocomposites for lithium ion batteries

被引：81

作者：

Chen, Shuangqiang ^{[1
,2
]}

Wang, Yong ^{[1
]}

Ahn, Hyojun ^{[3
]}

Wang, Guoxiu ^{[2
]}

机构：

[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China

[2] Univ Technol Sydney, Sch Chem & Forens Sci, Ctr Clean Energy Technol, Sydney, NSW 2007, Australia

[3] Gyeongsang Natl Univ, Sch Mat Sci & Engn, Jinju 660701, Gyeongnam, South Korea

来源：

JOURNAL OF POWER SOURCES | 2012年 / 216卷

基金：

中国国家自然科学基金; 新加坡国家研究基金会; 澳大利亚研究理事会;

关键词：

Graphene nanosheets; Tin nanoparticles; Microwave hydrothermal synthesis; Hydrogen reduction; Lithium ion batteries; SN-C COMPOSITE; ANODE MATERIAL; ELECTROCHEMICAL PERFORMANCE; HIGH-CAPACITY; SNO2/GRAPHENE COMPOSITE; STORAGE; OXIDE; MICROSPHERES; ELECTRODES; STABILITY;

D O I：

10.1016/j.jpowsour.2012.05.051

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Tin-graphene nanocomposites are prepared by a combination of microwave hydrothermal synthesis and a one-step hydrogen gas reduction. Altering the weight ratio between tin and graphene nanosheets has critical influences on their morphologies and electrochemical performances. Field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM) analysis confirm the homogeneous distribution of tin nanoparticles on the surface of graphene nanosheets. When applied as an anode material in lithium ion batteries, tin-graphene nanocomposite exhibits a high lithium storage capacity of 1407 mAh g(-1). The as-prepared tin-graphene nanocomposite also demonstrates an excellent high rate capacity and a stable cycle performance. The superior electrochemical performance could be attributed to the synergistic effect of the three-dimensional nanoarchitecture, in which tin nanoparticles are sandwiched between highly conductive and flexible graphene nanosheets. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：22 / 27

页数：6

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