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shortlife

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[资源] Adv. Enery Mater.综述：铁基先进电极材料在锂离子电池领域的应用-By 楼雄文

最近我们在Adv Enery Mater杂志上发表了铁基金属氧化物纳米结构在锂离子电池研究领域的综述文章（抱歉尚无页码，DOI: 10.1002/aenm.201300958，http://onlinelibrary.wiley.com/d ... .201300958/abstract），鉴于很多专家学者的单位未购买此杂志，在此特地分享，旨在抛砖引玉、相互交流，同时望方家批评指正。

作为过渡金属氧化物的重要成员，铁基金属氧化物（如Fe2O3、Fe3O4等）理论储锂容量高达1000 mA h g-1、储藏丰富、无毒安全，化学稳定性高，是广受关注的锂离子电池高能量电极材料。但其广泛应用仍存在以下亟待解决的难题：1）材料导电性差，电子传输能力低下；2）较高的单位原子嵌锂数导致材料相态、密度急剧变化，引起材料体积膨胀甚至粉碎失效；3）铁基金属氧化物中锂离子固相扩散能力差，电化学反应效率低；4）锂还原铁基氧化物的逆反应是热力学不利的反应。为了解决这些问题，近年来研究者们发展了各种方法以制备不同类型的铁基金属氧化物纳米结构如零维纳米颗粒、一维纳米线/棒、二维纳米薄片、三维中空纳米结构、复合结构等并对其电化学性能进行了详细研究。本文在回顾近年来铁基金属氧化物在锂离子电子领域应用研究进展的基础上，结合自身工作对铁基金属氧化物纳米结构的制备合成方法及储锂机制、应用等方面进行了归纳和总结，并对其在相关领域的应用前景及尚待开展的工作进行了评述和展望。

文章摘要如下：Iron oxides, such as Fe2O3 and Fe3O4, have recently received increased attention as very promising anode materials for rechargeable lithium-ion batteries (LIBs) because of their high theoretical capacity, non-toxicity, low cost, and improved safety. Nanostructure engineering has been demonstrated as an effective approach to improve the electrochemical performance of electrode materials. Here, recent research progress in the rational design and synthesis of diverse iron oxide-based nanomaterials and their lithium storage performance for LIBs, including 1D nanowires/rods, 2D nanosheets/flakes, 3D porous/hierarchical architectures, various hollow structures, and hybrid nanostructures of iron oxides and carbon (including amorphous carbon, carbon nanotubes, and graphene). By focusing on synthesis strategies for various iron-oxide-based nanostructures and the impacts of nanostructuring on their electrochemical performance, novel approaches to the construction of iron-oxide-based nanostructures are highlighted and the importance of proper structural and compositional engineering that leads to improved physical/chemical properties of iron oxides for efficient electrochemical energy storage is stressed. Iron-oxide-based nanomaterials stand a good chance as negative electrodes for next generation LIBs.

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[ Last edited by shortlife on 2014-2-20 at 01:26 ]

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附件 1 : Iron-Oxide-Based_Advanced_Anode_Materials_for_Lithium-Ion_Batteries.PDF

2014-02-20 01:22:54, 1.27 M