Synthesis of Li-Mn-O mesocrystals with controlled crystal phases through topotactic transformation of MnCO3

被引：44
|
作者：
Dang, Feng [1 ]
Hoshino, Tatsuhiko [1 ]
Oaki, Yuya [1 ]
Hosono, Eiji [2 ]
Zhou, Haoshen [2 ]
Imai, Hiroaki [1 ]
机构：
[1] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan
来源：
NANOSCALE | 2013年 / 5卷 / 06期
关键词：
SPINEL PHASES; PERFORMANCE; CATHODE; CO; MORPHOLOGIES; CARBONATE; NI;
D O I：
10.1039/c3nr33767g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Mesocrystals of Li-Mn-O compounds, such as LiMn2O4, Li2MnO3, and LiMnO2-Li2MnO3, consisting of oriented nanoscale units were selectively produced under hydrothermal conditions from biomimetically prepared MnCO3 mesocrystals. Topotactic transformation through the intermediate phase of Mn5O8 inheriting a hierarchical structure of the MnCO3 precursor was essential for the formation of the mesocrystal compounds. The crystal phases were successfully controlled by varying the conditions for the hydrothermal reactions. The Li-Mn-O mesocrystals have considerable potential as cathodes of Li-ion batteries.
引用
收藏
页码：2352 / 2357
页数：6
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