碳纳米管/三维石墨烯复合材料的制备及其在柔性超级电容器中的应用
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- 英文论文题名：Fabrication of carbon nanotube/three-dimensional grapheme composite materials for flexible supercapacitors
- 论文作者：潘争辉 ; 杨洁 ; 张心怡 ; 刘美男 ; 张跃钢
- 英文论文作者：Zhenghui Pan ; Jie Yang ; Xinyi Zhang ; Meinan Liu ; Yuegang Zhang ; Suzhou Institute of Nano-tech and Nano-bionics ; Chinese Academy of Science
- 年：2016
- 作者机构：中国科学院苏州纳米技术与纳米仿生研究所;
- 论文关键词：三维石墨烯 ; 碳纳米管 ; 碳纳米管/三维石墨烯复合材料 ; 柔性超级电容器
- 英文论文关键词：Three dimensional graphene ; Carbon nanotubes ; Carbon nanotubes/3D graphene composites ; flexible supercapacitors
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十分会：化学电源
- 语种：中文
- 分类号：TM53;TB332
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十分会 ; 化学电源
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：145k
- 原文格式：D
- 会议级别：全国
摘要
三维石墨烯通常是指具有三维结构的石墨烯组装体~([1]),该组装体不仅具有石墨烯固有的理化性质,且其三维多孔的微/纳米结构还使其兼具比表面积大、机械强度高、电子传导能力优越及传质快速等优良特性。另一方面,碳纳米管也是具有极大的比表面积、良好的导电性以及优异的机械性能等特性的纳米尺寸碳材料。选择合适的方法制备出碳纳米管/三维石墨烯复合材料,充分发挥二者协同效应,使其各种物理化学性能得到增强,因而这种复合材料在很多领域有着极大的应用前景~([2])。本项工作以三维石墨烯表面的二价金属交联离子为催化剂,且利用安全性更高的聚乙烯吡咯烷酮为固体碳源,获得了不同比例结构的碳纳米管/三维石墨烯复合材料。基于该材料的柔性超级电容器不仅表现出优异的电化学性能,同时还具备柔韧的物理性质。
Three dimensional(3D) graphene derived from graphene assemblies,the designed architecture may not only provide inherently excellent properties of graphene materials,but also exhibit micro/nano-architectures,huge specific surface areas,strong mechanical strengths,high electron conductivity and fast mass transport kinetics.On the other hand,carbon nanotubes are nanometer sized carbon materials with the characteristics of the great specific surface area,good electrical conductivity and excellent mechanical properties.Selecting appropriate methods to prepare carbon nanotubes/3D graphene composites can generate a synergistic effect between them with many physical and chemical properties enhanced,and these composites have a great future in many areas.Carbon nanotubes/3D graphene composites with different structures were prepared through taking advantage of divalent ions on the surface of 3D graphene as catalyst and using polyvinylpyrrolidone as the solid carbon source.The flexible supercapacitors based on these composites can not only achieve excellent electrochemical performance,but also possess flexible physical properties.
Three dimensional(3D) graphene derived from graphene assemblies,the designed architecture may not only provide inherently excellent properties of graphene materials,but also exhibit micro/nano-architectures,huge specific surface areas,strong mechanical strengths,high electron conductivity and fast mass transport kinetics.On the other hand,carbon nanotubes are nanometer sized carbon materials with the characteristics of the great specific surface area,good electrical conductivity and excellent mechanical properties.Selecting appropriate methods to prepare carbon nanotubes/3D graphene composites can generate a synergistic effect between them with many physical and chemical properties enhanced,and these composites have a great future in many areas.Carbon nanotubes/3D graphene composites with different structures were prepared through taking advantage of divalent ions on the surface of 3D graphene as catalyst and using polyvinylpyrrolidone as the solid carbon source.The flexible supercapacitors based on these composites can not only achieve excellent electrochemical performance,but also possess flexible physical properties.
引文
[1]Li,H;Yang,X.;Wang,X;Zhang,Y.Nano energy,2015,12:468
[2]Liu,J;Zhang,L;Wu,H;Lou,X.Energy Environ.Sci.,2014,7:3407
[2]Liu,J;Zhang,L;Wu,H;Lou,X.Energy Environ.Sci.,2014,7:3407