1. A facile synthetic protocol to construct 1D Zn-Mn-Oxide nanostructures with tunable compositions for high-performance lithium storage.
- Author
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Tian, Yuan, Chen, Zhangxian, Tang, Weijian, Yang, Zeheng, Zhang, Weixin, Li, Sheng, Wang, Kai, Sun, Yonghui, Xia, Qing, and Guo, Bing
- Subjects
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ZINC compounds , *ELECTRIC properties of nanostructured materials , *LITHIUM-ion batteries , *ANODES , *COPRECIPITATION (Chemistry) - Abstract
The synthesis of one-dimensional (1D) Zn-Mn-Oxide (ZMO) for lithium storage is an important research topic, since ZMO can potentially satisfy the ever-increasing demand on the high energy density, natural abundance and long lifespan of lithium ion batteries. Generally, the synthesis of 1D ZMO nanostructures relies on various templates. A facile construction of 1D ZMO nanostructures with tunable compositions via the same synthetic protocol remains a great challenge. Herein, two different Zn-Mn-Oxides of ZnMn 2 O 4 and ZnMnO 3 both with 1D rod morphology were successfully prepared via a simple co-precipitation reaction coupled with subsequent heat treatment. As the anode materials for lithium ion battery, both ZMO nanorods exhibit good lithium storage performances. Especially, ZnMn 2 O 4 nanorods display superior electrochemical performances to ZnMnO 3 nanorods, including higher discharge capacities of 1119.3 and 572.6 mAh g −1 at 0.1 C and 0.5 C, respectively and better cyclability with capacity retention of 80% after 300 cycles at 0.5 C. The improved electrochemical properties should be attributed to the porous and interparticle-bridging microstructures in ZnMn 2 O 4 nanorods, which can offer better contact between electrolyte and anode and tolerate larger volume changes during discharge/charge process. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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