Fabrication of lithium manganese oxide nanoribbons by electrospinning: A general strategy and formation mechanism. (15th December 2016)

• Record Type: Journal Article
• Authors: Yang, Guorui; Wang, Ling; Wang, Jianan; Wei, Wei; Yan, Wei
• Is Part Of: Materials & design. Volume 112(2016)
• Page Start: 429
• Page End: 435
• Publication Date: 2016-12-15
• Subjects: Electrospinning -- Nanoribbons -- Lithium manganese oxide -- General strategy; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2016.09.093
• Languages: English
• ISSNs: 0264-1275

Abstract

Abstract: Various lithium manganese oxides (LMOs), including LiMn2 O4, Li4 Mn5 O12 and Li2 MnO3, nanoribbons with excellent continuities have been fabricated by the electrospinning method, as Li4 Mn5 O12 was chosen as a model to illustrate this topic in detail. Both scanning electron microscopy and transmission electron microscopy observations showed that Li4 Mn5 O12 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. Graphical abstract: Highlights: Lithium manganese oxide nanoribbons with high purity were fabricated under low temperature. The nanoribbons possess higher surface areas compared with the nanoparticles. A general mechanism for the synthesis of Li-Mn-O nanoribbons was proposed.