.png){kind=icon}
返回
Multi-nanocomponent-assembled films with exceptional capacitance performance and electromagnetic interference shielding
.png){kind=icon}
OA
AI
DOI：10.1039/d2qm00418f.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Fully transferring or releasing the individual characteristics associated with each involved component at different levels or scales, plays a vital role in generating synergetic or even amplified effects, which is extremely desirable for the development of a high-performance composite. However, it is still a big challenge to alleviate or even remove the negative correlation between some properties/functions with structures in a complex system, for example, both the abundant interfacial structures and the high electrical conductivity required for electromagnetic interference (EMI) shielding. In this work, we establish a concise and efficient stepwise fabrication strategy initiated from the assembly of single-walled carbon nanotubes (SWCNTs) with cellulose nanofibers (CNFs) via van der Waals interactions, resulting in the formation of amphiphilic composites, which are further assembled with reduced graphene oxide (RGO) mainly through pi-pi interactions, arising from the aromatic skeletons of the SWCNTs and RGO. A series of films assembled from three-nanocomponents, with different thicknesses of up to 125 mu m are successfully prepared by a simple vacuum-assisted filtration without extra chemical/thermal treatments, exhibiting highly compact and consecutive layered structures. These porous films possess large surface areas (up to 106.2 m(2) g(-1)) with abundant interfacial structures, high electrical conductivity up to 222.2 S cm(-1), as well as good mechanical flexibility and intensity. Their abundant interfacial structures and retained outstanding electrical conductivity at more than 100 mu m thickness allow such types of films to deliver excellent capacitance behaviors with a high gravimetric energy density of 72.2 W h kg(-1), and exceptional total EMI shielding effectiveness (EMI SET) up to 75 dB, among the highest values of the reported carbon-based materials.
Keyword:
COMPOSITE FILMS
THERMAL-CONDUCTIVITY
GRAPHENE FILM
THIN-FILMS
LIGHTWEIGHT
ULTRATHIN
PAPER
期刊
IF:
6.4
论文数:
3.2K
被引数:
1.5W
机构
引用论文
Robust graphene composite films for multifunctional electrochemical capacitors with an ultrawide range of areal mass loading toward high-rate frequency response and ultrahigh specific capacitance用于多功能电化学电容器的坚固石墨烯复合膜，具有超宽范围的面积质量负载，可实现高速率频率响应和超高比电容
PREAI
分享收藏Cellulose Nanofibril/Reduced Graphene Oxide/Carbon Nanotube Hybrid Aerogels for Highly Flexible and All-Solid-State Supercapacitors用于高柔性全固态超级电容器的纤维素纳米纤丝/还原氧化石墨烯/碳纳米管混合气凝胶
PREAI
分享收藏Comparative study of electromagnetic interference shielding properties of injection molded versus compression molded multi-walled carbon nanotube/polystyrene composites.png)
CARBON
CARBONIF11.6
PREAI
分享收藏分享收藏Activated carbon fibres as high performance supercapacitor electrodes with commercial level mass loading活性炭纤维作为具有商业水平质量负载的高性能超级电容器电极CARBON
CARBONIF11.6
PREAI
分享收藏Light weight, ultrathin, and thermally-clickable self-healing MWNT patch as electromagnetic interference suppressor重量轻，超薄且可热点击的自愈MWNT贴片作为电磁干扰抑制器
PREAI
分享收藏Thin and flexible multi-walled carbon nanotube/waterborne polyurethane composites with high-performance electromagnetic interference shieldingCARBON
CARBONIF11.6
PREAI
分享收藏
查看更多内容