Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 745, Issue -, Pages 688-695Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.02.179
Keywords
Graphene; Carbon nanotubes; Layer structure; Electrochemical performance; Supercapacitors
Categories
Funding
- National Natural Science Foundation of China [NSFC51701173]
- Key Research Project of Chinese Universities [18A530004]
Ask authors/readers for more resources
Graphene aerogel is one of the most promising candidates for supercapacitors electrode material because of its high specific surface area and good electronic conductivity. However, the extremely low gravimetric density seriously limits its further practical applications. In this paper, a compression strategy was utilized to increase the gravimetric density by forming a unique highly-curved carbon nanotubes supported graphene porous 3D layer structure. The structure and morphology were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectrum and N-2 adsorption/desorption measurement. Results demonstrate that the highly-curved carbon nanotubes between the graphene layers can prevent the restacking of the graphene layers. The newly formed structure retains the merits of graphene aerogel such as high specific surface area, good electronic conductivity, and porous structure. The electrochemical performance was investigated by a galvanostatic charge-discharge test (GDC) and a specific capacitance of 246.3 F g(-1) was achieved, endowing it with great application potential as an supercapacitors electrode material. (c) 2018 Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available