Tang Haitong, Yu Xinru, Jin Shi, Meng Fanling, Yan Yan, Gao Zhongmin
Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, People's Republic of China.
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China.
R Soc Open Sci. 2018 Jun 20;5(6):171522. doi: 10.1098/rsos.171522. eCollection 2018 Jun.
Hierarchical carbon nanofibre (CNF)/SnO/Ni nanostructures of graphitized carbon nanofibres and SnO nanocrystallines and Ni nanocrystallines have been prepared via divalent tin-alginate assembly on polyacrylonitrile (PAN) fibres, controlled pyrolysis and ball milling. Fabrication is implemented in three steps: (1) formation of a tin-alginate layer on PAN fibres by coating sodium alginate on PAN in a water medium followed by polycondensation in SnCl solution; (2) heat treatment at 450°C in a nitrogen atmosphere; (3) ball milling the mixture of CNF/SnO fibres and Ni powder. The CNF/SnO/Ni nanocomposite exhibits good lithium ion storage capacity and cyclability, providing a facile and low-cost approach for the large-scale preparation of anode materials for lithium ion batteries.
通过在聚丙烯腈（PAN）纤维上进行二价锡-海藻酸盐组装、控制热解和球磨，制备了具有石墨化碳纳米纤维、SnO纳米晶体和Ni纳米晶体的分级碳纳米纤维（CNF）/SnO/Ni纳米结构。制备过程分三步进行：（1）通过在水介质中将海藻酸钠涂覆在PAN上，然后在SnCl溶液中进行缩聚反应，在PAN纤维上形成锡-海藻酸盐层；（2）在氮气气氛中于450°C进行热处理；（3）将CNF/SnO纤维和Ni粉末的混合物进行球磨。CNF/SnO/Ni纳米复合材料表现出良好的锂离子存储容量和循环性能，为大规模制备锂离子电池负极材料提供了一种简便且低成本的方法。
