Ethylene glycol (EG) solvothermal synthesis of flower-like LiMnPO4 nanostructures self-assembled with (010) nanobelts for Li-ion battery positive cathodes
Ethylene glycol (EG) solvothermal synthesis of flower-like LiMnPO4 nanostructures self-assembled with (010) nanobelts for Li-ion battery positive cathodes
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DOI：
10.1039/c6ce00336b
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发表时间：
2016-05
期刊：
影响因子：
3.1
通讯作者：
Gang Xu;Yang Yongrong;Li Lingling;Li Feng;Jiangwei Wang;Liang Bao;Xiang Li;G. Shen;G. Han-G.
中科院分区：
文献类型：
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作者：
Gang Xu;Yang Yongrong;Li Lingling;Li Feng;Jiangwei Wang;Liang Bao;Xiang Li;G. Shen;G. Han-G.
以乙酸锂、乙酸锰和磷酸为反应前驱体，采用乙二醇溶剂热法合成了花状LiMnPO 4纳米带。LiMnPO 4纳米带主要由（010）晶面组成。采用X射线衍射、扫描电子显微镜、透射电子显微镜（TEM）、高分辨透射电子显微镜（TEM）和N2-物理吸附技术对合成样品的微观结构和形貌进行了表征。在实验结果的基础上，对花状LiMnPO 4纳米结构与纳米带自组装的可能形成机理进行了讨论。此外，介孔LiMnPO 4纳米结构作为锂离子电池正极的电化学性能进行了进一步研究。
Flower-like LiMnPO4 nanostructures self-assembled with nanobelts were synthesized via a simple ethylene glycol (EG) solvothermal route, in which lithium acetate, manganese acetate and phosphoric acid are used as the reaction precursors. The primary block LiMnPO4 nanobelts are dominated with (010) facets. X-ray diffraction, scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, and N2-physisorption technique were employed to characterize the microstructure and morphologies of the synthesized samples. On the basis of the experimental results, a possible formation mechanism of the flower-like LiMnPO4 nanostructures self-assembled with nanobelts has been discussed. In addition, the electrochemical performance of the mesoporous LiMnPO4 nanostructures is further investigated as positive cathodes in Li-ion batteries.