Formation of Polypyrrole-Coated Sb2Se3 Microclips with Enhanced Sodium-Storage Properties
Formation of Polypyrrole-Coated Sb2Se3 Microclips with Enhanced Sodium-Storage Properties
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DOI：
10.1002/anie.201805552
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发表时间：
2018-07-26
影响因子：
16.6
通讯作者：
Lou, Xiong Wen (David)
中科院分区：
文献类型：
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作者：
Fang, Yongjin;Yu, Xin-Yao;Lou, Xiong Wen (David)
具有高比容量的锑基电极材料作为钠离子电池的负极材料引起了人们的广泛关注。在此，我们开发了一种模板离子交换方法来合成Sb2Se3微夹，并在得到的Sb2Se3微夹上进一步涂覆聚吡咯（PPy）。得益于结构和成分的优点，这些ppy涂层的Sb2Se3微夹在高可逆容量，优越的速率能力和稳定的循环性能方面表现出增强的钠存储性能。
Antimony-based electrode materials with high specific capacity have aroused considerable interest as anode materials for sodium-ion batteries (SIBs). Herein, we develop a template-engaged ion-exchange method to synthesize Sb2Se3 microclips, and the as-obtained Sb2Se3 microclips are further insitu coated with polypyrrole (PPy). Benefiting from the structural and compositional merits, these PPy-coated Sb2Se3 microclips exhibit enhanced sodium-storage properties in terms of high reversible capacity, superior rate capability, and stable cycling performance.