Fabrication of lithium manganese oxide nanoribbons by electrospinning: A general strategy and formation mechanism

Publication date: 15 December 2016
Source:Materials & Design, Volume 112
Author(s): Guorui Yang, Ling Wang, Jianan Wang, Wei Wei, Wei Yan
Various lithium manganese oxides (LMOs), including LiMn2O4, Li4Mn5O12 and Li2MnO3, nanoribbons with excellent continuities have been fabricated by the electrospinning method, as Li4Mn5O12 was chosen as a model to illustrate this topic in detail. Both scanning electron microscopy and transmission electron microscopy observations showed that Li4Mn5O12 structures were well-defined one-dimensional nanoribbons. The X-ray diffraction results exhibited that the regular ribbon-like nanostructures possessed highly crystalline structures without any detectable impurities, while their nanoparticle counterparts prepared by a sol-gel route were introduced several foreign impurities. Moreover, such nanoribbons also demonstrate larger surface areas compared with the nanoparticles. The temperature-dependent experiment has been adopted in an attempt to trail the growth process of the nanoribbons, and a possible formation mechanism was proposed based on it.

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