材料科学
无定形固体
阳极
钼
离子
三氧化钼
纳米技术
电极
三氧化钨
锂(药物)
储能
过渡金属
化学工程
光电子学
化学
结晶学
钨
物理化学
催化作用
冶金
热力学
物理
功率(物理)
有机化学
内分泌学
工程类
生物化学
医学
作者
Henghan Dai,Jinyuan Zhou,Gang Qin,Gengzhi Sun
出处
期刊:Dalton Transactions
[The Royal Society of Chemistry]
日期:2021-11-23
卷期号:51 (2): 524-531
被引量:16
摘要
Upgrading the energy density and cycling life of current lithium ion batteries is urgently needed for developing advanced portable electronics and electric vehicles. Amorphous transition metal oxides (TMO) with inherent lattice disorders exhibit enormous potential as electrode materials owing to their high specific capacity, fast ion diffusion, and excellent cyclic stability. Yet, challenges remain in their controllable synthesis. In this study, the amorphous phase is induced into α-MoO3 crystal nanobelts at room temperature with the aid of Jahn-Teller effect via enhanced lattice distortion triggered by the accumulation of low-valent molybdenum centers. The optimized HI-MoO3-36 h exhibits high reversible capacities of 886.0 at 0.1 A g-1 and 491.1 mA h g-1 at 1.0 A g-1, respectively, along with outstanding stability retaining 83.4% initial capacity after 100 cycles at 0.1 A g-1. The crystal engineering strategy proposed in this work is believed to be a salutary reference towards the synthesis of high-performance TMO anodes for energy storage applications.
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