Size-controlled synthesis and electrochemical performance of porous Fe2O3/SnO2 nanocubes as an anode material for lithium ion batteries

作者：Gu, Cuiping; Guan, Wenmei; Shim, Jae-Jin^*; Fang, Zhen^*; Huang, Jiarui^*

来源：CrystEngComm, 2017, 19(4): 708-715.

DOI：10.1039/c6ce02288j

• TRANSITION-METAL OXIDES
• STORAGE PROPERTIES
• HOLLOW NANOSTRUCTURES
• FACILE SYNTHESIS
• WATER OXIDATION
• COMPOSITE
• CAPACITY
• FILMS
• SNO2
• GRAPHENE

Uniform and monodisperse porous Fe2O3/SnO2 nanocubes with different particle sizes were synthesized by a template-free, economical aqueous solution method combined with subsequent calcination. The size of the precursor, FeSn(OH)(6) cubes, was controlled carefully from 50-90 nm to 500-600 nm by adjusting the pH of the solution in the coprecipitation process. The structural and morphological evolution was characterized using a range of techniques. Thermal decomposition of the precursors led to an intimate mixture of hexagonal phase Fe2O3 and tetragonal phase SnO2. The as-prepared porous Fe2O3/SnO2 nanocubes with edge sizes in the range of 50-90 nm as anode materials for lithium storage achieved a very high reversible capacity of 620.8 mA h g(-1) at 200 mA g(-1) after 150 cycles. This paper reports a promising method for the design and preparation of porous nanocomposite electrodes for Li-ion batteries.

• 出版日期2017-1-28
• 单位安徽师范大学