垂直结构WS2@C复合材料的制备及其储能性能研究
The Preparation and Electrochemical Properties of Vertically Structured WS2@C Composites
张朔 1方泽中 1尹宗贵 1黄灿 1刘文帅 1王黎丽 1邓崇海1
作者信息
- 1. 合肥学院能源材料与化工学院,合肥 230601
- 折叠
摘要
使用一种简便的水热合成方法,将废弃的甘蔗渣作为碳源,成功合成了具有垂直结构的WS2@C复合材料.WS2纳米片均匀地垂直锚定在甘蔗渣碳片上,提供了开放的孔道结构,作为碳基底的甘蔗渣碳片有效改善了WS2材料的本征导电率,实现了良好的电接触,并有效地缓解了循环过程中的体积膨胀效应,因此在作为钠离子电池负极材料时,实现了高稳定性和高容量的电化学性能.这项工作为寻求新型高性能储能材料的设计和合成提供了有益的参考.
Abstract
In this paper,WS2@C composites with a vertical structure were successfully synthesised us-ing a facile hydrothermal synthesis method using waste bagasse as a carbon source.WS2 nanosheets were uniformly anchored vertically on the bagasse carbon sheets,providing an open pore structure,and the bagasse carbon sheets as a carbon substrate effectively improved the intrinsic conductivity of the WS2 material,achieving good electrical contact and effectively mitigating the cycling.The open pore structure of the bagasse carbon sheet as a carbon substrate effectively improves the intrinsic con-ductivity of the WS2 material,achieves good electrical contact and effectively mitigates the volume ex-pansion effect during cycling.As a result,high stability and high capacity electrochemical properties were achieved when used as anode materials for sodium ion batteries.This work provides a useful ref-erence in the search for the design and synthesis of new high-performance energy storage materials.
关键词
甘蔗渣/WS2/复合材料/钠离子电池/负极材料Key words
sugarcane bagasse/WS2/composite material/sodium ion battery/anode material引用本文复制引用
基金项目
安徽省高校优秀青年人才支持计划(重点)项目(gxyqZD2021136)
安徽省级教育教学研究项目(2022jyxm1318)
合肥学院教学研究项目(2021hfujyxm32)
出版年
2024
NETL
NSTL
万方数据