Mechanical properties of individual core-shell-structured Sn O2@C nanofibers investigated by atomic force microscopy and finite element method

查看全文 作　　者：LIU [1]Xing;LI [1]KeFeng;DUAN [1]XiaoLu;HUANG [1]YuTing;LI [1]Shuai;LIU [1]YiLin;XU [1]Fu;LI [2]Zheng;ZHANG [1]Ping;DING [1,3]YanHuai 机构地区：[1]Institute of Rheological Mechanics, Xiangtan University;[2]School of Science, Harbin Institute of Technology at Shenzhen;[3]Key Laboratory of Intelligent Computing & Information Processing of Ministry of Education, Xiangtan University 出　　处：《Science China(Technological Sciences)》索引2018年第61卷第8期,共6页 基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51401176,51002128);the Scientific Research Foundation of the Hunan Provincial Education Department(Grant No.17A205);the Natural Science Foundation of Hunan Province(Grant No.2018JJ2393,2018JJ2394) 摘　　要：Although SnO_2-based nanomaterials used to be considered as being extraordinarily versatile for application to nanosensors,microelectronic devices, lithium-ion batteries, supercapacitors and other devices, the functionalities of SnO_2-based nanomaterials are severely limited by their intrinsic vulnerabilities. Facile electrospinning was used to prepare SnO_2 nanofibers coated with a protective carbon layer. The mechanical properties of individual core-shell-structured SnO_2@C nanofibers were investigated by atomic force microscopy and the finite element method. The elastic moduli of the carbon-coated SnO_2 nanofibers remarkably increased, suggesting that coating SnO_2 nanofibers with carbon could be an effective method of improving their mechanical properties. 关 键 词：SNO2 机械性质 有限元素 显微镜 原子力 锂离子电池 碳层 设备