Lithium ion battery application of porous composite oxide microcubes prepared 
via metal-organic frameworks

Yang, Xia; Tang, Yong-Bing; Huang, Xing; Xue, Hong Tao; Kang, Wen Pei; Li, Wen Yue; Ng, Tsz-Wai; Lee, Chun-Sing

doi:10.1016/j.jpowsour.2015.02.155

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Lithium ion battery application of porous composite oxide microcubes prepared via metal-organic frameworks

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Huang, Xing
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Yang, X., Tang, Y.-B., Huang, X., Xue, H. T., Kang, W. P., Li, W. Y., et al. (2015). Lithium ion battery application of porous composite oxide microcubes prepared via metal-organic frameworks. Journal of Power Sources, 284, 109-114. doi:10.1016/j.jpowsour.2015.02.155.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-9D46-9

Abstract

Prussian Blue (PB, Fe₄[Fe(CN)₆]₃) is utilized to synthesize bimetallic metal-organic frameworks (MOFs) (Fe₄[Fe(CN)₆]₃/M_x[Fe(CN)₆], M = Cu, Ni, Co, etc.) by cation exchange, driven by differences in solubility product constant (K_sp) of monometallic MOFs. Upon decomposition, the bimetallic MOFs convert to porous composite metal oxides (Fe₂O₃/MO_x, M = Cu, Ni, Co, etc.) while keeping the original cubic morphology. This study demonstrates a general approach for preparing bimetallic MOFs and porous composite oxides. We also demonstrate the good electrochemical performance (specific capacity of 774 mAh g⁻¹ after 120 cycles at 500 mA g⁻¹) of the synthesized porous Fe₂O₃–CuO composite as an anode material for lithium ion batteries. And according to references, this composite exhibit better or comparable rate capability and cycle stability compared with other hybrid transition metal oxides.