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Facile synthesis of CTAB assisted hierarchical-structure TiO2@SnO2 for lithium storage
Solid State Sciences ( IF 3.5 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.solidstatesciences.2020.106114
Meng Chao , Lijiang Zhao , Jin Leng , Xinghua Liu , Yutong Li , Junying Zhang , Zilong Tang

Abstract Tin oxide (SnO2) with high specific capacity and excellent safety performance has become potential candidate for next generation lithium-ion batteries (LIBs). However, the practical application of SnO2 is hindered by large volume change and particle aggregation. Herein, a type of three-dimensional (3D) hierarchical porous titanium-based microclews composed of one-dimensional (1D) titanium dioxide (TiO2) nanoribbons and SnO2 nanoparicles, is synthesized for the first time with the assistance of cationic surfactant, cetyltrimethylammonium bromidewere (CTAB). SnO2 nanoparticles distribute uniformly on the nanoribbons, and CTAB as growth controller plays a key role in the formation of the uniform and stable hierarchical-structure. The as-synthesized CTAB assisted hierarchical-structure TiO2@SnO2 microclews (CA–TiO2@SnO2 MCs) elelctrode demonstrates outstanding ionic conductivity due to the structure assisting efficient contact between electrode and electrolyte, with a remarkable discharge capacity of 448.3 mAh g−1 after cycling for 500 times at a current density of 500 mA g−1, and a capacity retention of 558.8 mAh g−1 at 200 mA g−1 after 400 cycles in LIBs.

中文翻译:

CTAB辅助分层结构TiO2@SnO2锂储存的简便合成

摘要 具有高比容量和优异安全性能的氧化锡(SnO2)已成为下一代锂离子电池(LIBs)的潜在候选者。然而,较大的体积变化和颗粒聚集阻碍了 SnO2 的实际应用。在此,首次在阳离子表面活性剂十六烷基三甲基溴化铵的帮助下合成了一种由一维(1D)二氧化钛(TiO2)纳米带和SnO2纳米颗粒组成的三维(3D)分级多孔钛基微线。 (CTAB)。SnO2 纳米粒子均匀分布在纳米带上,CTAB 作为生长控制器在形成均匀稳定的分层结构中起着关键作用。
更新日期:2020-02-01
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