Sb2O3 Nanoparticles Anchored on Graphene Sheets via Alcohol Dissolution-Reprecipitation Method for Excellent Lithium-Storage Properties
Sb2O3 Nanoparticles Anchored on Graphene Sheets via Alcohol Dissolution-Reprecipitation Method for Excellent Lithium-Storage Properties
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通过醇溶解-再沉淀法锚定在石墨烯片上的 Sb2O3 纳米颗粒具有优异的储锂性能
DOI：
10.1021/acsami.7b10107
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发表时间：
2017
影响因子：
9.5
通讯作者：
Lei Ziqiang
中科院分区：
文献类型：
--
作者：
Zhou Xiaozhong;Zhang Zhengfeng;Lu Xiaofang;Lv Xueyan;Ma Guofu;Wang Qingtao;Lei Ziqiang
基于乙醇溶解-再沉淀法，通过一种简单、环保的方法将Sb 2 O3纳米颗粒均匀地固定在还原氧化石墨烯（rGO）片上.当用作锂离子电池（LIB）的阳极电极时，这样获得的Sb 2 O3/rGO复合材料表现出高度可逆的比容量（在100 mA g-1下为1355 mA h g-1）、良好的倍率性能和优异的上级寿命周期（在600 mA g-1下700次循环后为525 mA h g-1）。Sb 2 O3/rGO复合材料优异的电化学性能是由于其独特的结构，Sb 2 O3与rGO之间强的电子耦合效应导致了其在可逆转化-合金化反应中的电子电导率、结构稳定性和电化学活性的提高。此外，这些发现有助于开发用于LIB的新型高性能电极和以生态友好和经济的方式合成功能材料。
Sb2O3nanoparticles are uniformly anchored on reduced graphene oxide (rGO) sheets via a facile and ecofriendly route based on the alcohol dissolution–reprecipitation method. Such obtained Sb2O3/rGO composite demonstrates a highly reversible specific capacity (1355 mA h g–1at 100 mA g–1), good rate capability, and superior life cycle (525 mA h g–1after 700 cycles at 600 mA g–1) when used an anode electrode for lithium-ion batteries (LIBs). The outstanding electrochemical properties of Sb2O3/rGO composite could be attributed to its unique structure in which the strong electronic coupling effect between Sb2O3and rGO leads to an enhanced electronic conductivity, structure stability, and electrochemical activity during reversible conversion-alloying reactions. Also, these findings are helpful in both developing novel high-performance electrodes for LIBs and synthesizing functional materials in an ecofriendly and economical way.