期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 44, 页码 15863-15868出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201907748
关键词
co-assembly; Li4Ti5O12; lithium ion batteries; mesoporous materials
资金
- National Key R&D Program of China [2018YFA0209401, 2017YFA0207303, 2016YFA0204000]
- NSFC [21733003, 21603036]
- Science and Technology Commission of Shanghai Municipality [17JC1400100, 16520710100]
- Qatar University [QUHI-CAS-19/20-1]
A molecular design strategy is used to construct ordered mesoporous Ti3+-doped Li4Ti5O12 nanocrystal frameworks (OM-Ti3+-Li4Ti5O12) by the stoichiometric cationic coordination assembly process. Ti4+/Li+-citrate chelate is designed as a new molecular precursor, in which the citrate can not only stoichiometrically coordinate Ti4+ with Li+ homogeneously at the atomic scale, but also interact strongly with the PEO segments in the Pluronic F127. These features make the co-assembly and crystallization process more controllable, thus benefiting for the formation of the ordered mesostructures. The resultant OM-Ti3+-Li4Ti5O12 shows excellent rate (143 mAh g(-1) at 30 C) and cycling performances (<0.005 % fading per cycle). This work could open a facile avenue to constructing stoichiometric ordered mesoporous oxides or minerals with highly crystalline frameworks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据