期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 820, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.153114
关键词
Graphene; Carbon nanotubes; CVD; Electrode; Supercapacitor
资金
- Key R&D Development Program from the Ministry of Science and Technology of China [2017YFB0406000]
- National Natural Science Foundation of China [51872182, 11672171]
- Swedish Board for Innovation (Vinnova) under the Sioagrafen program
- Swedish Foundation for Strategic Research (SSF) [SE13-0061, GMT14-0045]
- Formas [FR-2017/0009]
- Swedish National Science Foundation [621-2007-4660]
- Production Area of Advance at Chalmers University of Technology, Sweden
In this work, we developed a facile route to synthesize three-dimensional graphene/carbon nanotube (3DG/CNT) hybrids as electrodes for binder-free electrical double layer capacitor (EDLC) by using chemical vapor deposition (CVD) method. The 3DG/CNT composites have been characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS). It was found that the 3DG/CNT with interconnected architecture exhibit improved capacitive characteristic and electrical conductivity compared to that of pure 3DG. The 3DG/CNT composites have high specific capacitance of 197.2 F/g and excellent capacity retention rate of 93% after 1000 cycles. The experiment results show that the as-synthesized 3DG/CNT hold great potential as candidate as electrode for binder-free EDLC. (C) 2019 Elsevier B.V. All rights reserved.
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