Yolk bishell Mn(x)Co(1-x)Fe2O4 hollow microspheres and their embedded form in carbon for highly reversible lithium storage

ACS Applied Materials & Interfaces
Zailei ZhangFabing Su

Abstract

The yolk-shell hollow structure of transition metal oxides has many applications in lithium-ion batteries and catalysis. However, it is still a big challenge to fabricate uniform hollow microspheres with the yolk bishell structure for mixed transition metal oxides and their supported or embedded forms in carbon microspheres with superior lithium storage properties. Here we report a new approach to the synthesis of manganese cobalt iron oxides/carbon (MnxCo1-xFe2O4 (0 ≤ x ≤ 1)) microspheres through carbonization of Mn(2+)Co(2+)Fe(3+)/carbonaceous microspheres in N2, which can be directly applied as high-performance anodes with a long cycle life for lithium storage. Furthermore, uniform hollow microspheres with a MnxCo1-xFe2O4 yolk bishell structure are obtained by annealing the above MnxCo1-xFe2O4/carbon microspheres in air. As demonstrated, these anodes exhibited a high reversible capacity of 498.3 mAh g(-1) even after 500 cycles for Mn0.5Co0.5Fe2O4/carbon microspheres and 774.6 mAh g(-1) over 100 cycles for Mn0.5Co0.5Fe2O4 yolk bishell hollow microspheres at the current density of 200 mA g(-1). The present strategy not only develops a high-performance anode material with long cycle life for lithium-ion batteries but also demon...Continue Reading

References

Nov 20, 2001·Nature·J M Tarascon, M Armand
May 1, 2004·Science·Yadong YinA Paul Alivisatos
Jun 19, 2007·Journal of the American Chemical Society·Hexing LiYunfeng Lu
May 4, 2010·Advanced Materials·Xue-Jun Wu, Dongsheng Xu
Aug 25, 2011·Chemical Communications : Chem Comm·Jian LiuGao Qing Lu
May 11, 2012·Advanced Materials·Zhiyu WangXiong Wen David Lou
Oct 25, 2012·Chemical Society Reviews·Yiding LiuYadong Yin
Dec 29, 2012·Journal of the American Chemical Society·Ming HuYusuke Yamauchi
Apr 4, 2013·Chemical Reviews·M V ReddyB V R Chowdari
Dec 11, 2013·Journal of the American Chemical Society·Narae KangSeung Uk Son
Jan 3, 2014·Angewandte Chemie·Changzhou YuanXiong Wen David Lou

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Citations

Jan 25, 2017·ACS Applied Materials & Interfaces·Hualiang LvZhichuan J Xu
Sep 22, 2018·Advanced Materials·Jiangyan WangDan Wang

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