生长在还原氧化石墨烯上的介孔单晶Li₄Ti₅O₁₂作为锂离子电池的高倍率负极材料
Mesoporous single crystals Li₄Ti₅O₁₂ grown on rGO as high-rate anode materials for lithium-ion batteries.
作者信息
Chen Weina, Jiang Hao, Hu Yanjie, Dai Yihui, Li Chunzhong
机构信息
Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
出版信息
Chem Commun (Camb). 2014 Aug 18;50(64):8856-9. doi: 10.1039/c4cc02886d.
Mesoporous single crystals Li4Ti5O12 grown on reduced graphene oxide (MSCs-LTO-rGO) nanohybrids have been synthesized by a simple hydrothermal reaction of TiO2/rGO and LiOH with subsequent annealing in Ar at 600 °C, which exhibited high specific capacity (171 mA h g(-1)) with much improved rate capability (132 mA h g(-1) at 40 C) and intriguing cycling stability (85% capacity retention after 2000 cycles).
通过TiO₂/rGO与LiOH的简单水热反应，随后在600℃的氩气中退火，合成了生长在还原氧化石墨烯（MSCs-LTO-rGO）纳米杂化物上的介孔单晶Li₄Ti₅O₁₂，其表现出高比容量（171 mA h g⁻¹），倍率性能有很大改善（40 C时为132 mA h g⁻¹）以及令人感兴趣的循环稳定性（2000次循环后容量保持率为85%）。
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