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大牛Liqiang Mai钠离子电池最新力作（ACS, 2015年8月15日）
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题目：Lattice Breathing Inhibited Layered Vanadium Oxide Ultrathin Nanobelts for Enhanced Sodium Storage 作者：Qiulong Wei ‡, Zhouyang Jiang §, Shuangshuang Tan ‡, Qidong Li ‡, Lei Huang ‡, Mengyu Yan ‡, Liang Zhou *‡, Qinyou An ‡, and Liqiang Mai *‡ ‡ State Key Laboratory of Advanced Technology for Materials Synthesis and Processing § School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, P. R. China 摘要：Operating as the “rocking-chair” battery, sodium ion battery (SIB) with acceptable high capacity is a very promising energy storage technology. Layered vanadium oxide xerogel exhibits high sodium storage capacity. But it undergoes large lattice breathing during sodiation/desodiation, resulting in fast capacity fading. Herein, we develop a facile hydrothermal method to synthesize iron preintercalated vanadium oxide ultrathin nanobelts (Fe-VOx) with constricted interlayer spacing. Using the Fe-VOx as cathode for SIB, the lattice breathing during sodiation/desodiation is largely inhibited and the interlayer spacing is stabilized for reversible and rapid Na+ insertion/extraction, displaying enhanced cycling and rate performance. This work presents a new strategy to reduce the lattice breathing of layered materials for enhanced sodium storage through interlayer spacing engineering.  1.jpg |
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2015-08-15 10:40:18, 4.56 M
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