混合过渡金属氧化物负极材料的合成及性能研究

发布时间：2018-06-11 11:30

本文选题：准晶 + 锂离子电池　；参考：《长春理工大学》2017年硕士论文

【摘要】：准晶材料具有非常特殊的短程有序、长程准周期无序的结构,拥有很特殊的物理、化学以及力学性能,因此对扩展准晶应用领域的探索研究非常有必要。基于此,本工作设计了一系列以准晶为主的前驱体合金,通过去合金化法制备了Fe_3O_4纳米片,具有双连续带孔道结构的Fe_3O_4/CuO/Cu以及微纳尺寸的棒状、片状及八面体CoNi/CoO/NiO混合过渡金属氧化物复合材料,并研究了前驱体合金组分、合成前驱体合金时的甩带速度、去合金化反应时间以及腐蚀溶液浓度等条件对产物组成及结构的影响。实验表明,这些混合过渡金属氧化物作为锂离子电池负极材料时,均表现出了优异的电化学性能。
[Abstract]:Quasicrystals have very special short range order, long range quasiperiodic disordered structure, special physical, chemical and mechanical properties, so it is necessary to explore and study the extended quasicrystal application field. Based on this, a series of quasicrystalline precursor alloys were designed. Fe3O4 nanochips were prepared by dealloying method. Fe3O4 / CuO / Cu / Cu with double continuous channel structure and rods of micro / nano size were prepared. Sheet and octahedron CoO / nio mixed transition metal oxide composites were used to study the composition of the precursor alloy and the velocity of belt dumping in the synthesis of the precursor alloy. The influence of reaction time and concentration of corrosion solution on the composition and structure of the product. The experimental results show that these mixed transition metal oxides exhibit excellent electrochemical performance when they are used as anode materials for lithium ion batteries.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB383.1

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