Synthesis of free-standing carbon nanohybrid by directly growing carbon nanotubes on air-sprayed graphene oxide paper and its application in supercapacitor
Abstract
We report the synthesis of a free-standing two dimensional carbon nanotube (CNT)-reduced graphene oxide (rGO) hybrid by directly growing CNTs on air-sprayed GO paper. As a result of the good integration between CNTs and thermally reduced GO film during chemical vapor deposition, excellent electrical conductivity (2.6×10{sup 4} S/m), mechanical flexibility (electrical resistance only increases 1.1% after bent to 90° for 500 times) and a relatively large surface area (335.3 m{sup 2}/g) are achieved. Two-electrode supercapacitor assembled using the CNT–rGO hybrids in ionic liquid electrolyte (1-ethyl-3-methylimidazolium tetrafluoroborate) shows excellent stability upon 500 bending cycles with the gravimetric energy density measuring 23.7 Wh/kg and a power density of 2.0 kW/kg. Furthermore, it shows an impedance phase angle of −64.4° at a frequency of 120 Hz, suggesting good potentials for 120 Hz alternating current line filtering applications. - Graphical abstract: Flexible and highly conductive carbon nanotube-reduced graphene oxide nanohybrid. - Highlights: • Direct growth of carbon nanotubes by chemical vapor deposition on air-sprayed graphene oxide paper. • Two-dimensional carbon nanohybrid with excellent conductivity and mechanical flexibility. • Supercapacitor with excellent performance stability upon mechanical deformation for flexible electronics applications. • Supercapacitor with high impedance phase angle for 120 Hz alternating current line filteringmore »
- Authors:
-
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459 (Singapore)
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384 (China)
- Publication Date:
- OSTI Identifier:
- 22475556
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Solid State Chemistry
- Additional Journal Information:
- Journal Volume: 224; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALTERNATING CURRENT; CARBON NANOTUBES; CARBON OXIDES; CHEMICAL VAPOR DEPOSITION; ELECTRIC CONDUCTIVITY; ELECTRODES; ELECTROLYTES; FILMS; FLEXIBILITY; FLUOROBORATES; GRAPHENE; IMIDAZOLES; IMPEDANCE; LIQUIDS; SPRAYS; SURFACE AREA; SYNTHESIS; TWO-DIMENSIONAL SYSTEMS
Citation Formats
Wei, Li, Jiang, Wenchao, Yuan, Yang, Goh, Kunli, Yu, Dingshan, Wang, Liang, and Chen, Yuan. Synthesis of free-standing carbon nanohybrid by directly growing carbon nanotubes on air-sprayed graphene oxide paper and its application in supercapacitor. United States: N. p., 2015.
Web. doi:10.1016/J.JSSC.2014.03.030.
Wei, Li, Jiang, Wenchao, Yuan, Yang, Goh, Kunli, Yu, Dingshan, Wang, Liang, & Chen, Yuan. Synthesis of free-standing carbon nanohybrid by directly growing carbon nanotubes on air-sprayed graphene oxide paper and its application in supercapacitor. United States. https://doi.org/10.1016/J.JSSC.2014.03.030
Wei, Li, Jiang, Wenchao, Yuan, Yang, Goh, Kunli, Yu, Dingshan, Wang, Liang, and Chen, Yuan. Wed .
"Synthesis of free-standing carbon nanohybrid by directly growing carbon nanotubes on air-sprayed graphene oxide paper and its application in supercapacitor". United States. https://doi.org/10.1016/J.JSSC.2014.03.030.
@article{osti_22475556,
title = {Synthesis of free-standing carbon nanohybrid by directly growing carbon nanotubes on air-sprayed graphene oxide paper and its application in supercapacitor},
author = {Wei, Li and Jiang, Wenchao and Yuan, Yang and Goh, Kunli and Yu, Dingshan and Wang, Liang and Chen, Yuan},
abstractNote = {We report the synthesis of a free-standing two dimensional carbon nanotube (CNT)-reduced graphene oxide (rGO) hybrid by directly growing CNTs on air-sprayed GO paper. As a result of the good integration between CNTs and thermally reduced GO film during chemical vapor deposition, excellent electrical conductivity (2.6×10{sup 4} S/m), mechanical flexibility (electrical resistance only increases 1.1% after bent to 90° for 500 times) and a relatively large surface area (335.3 m{sup 2}/g) are achieved. Two-electrode supercapacitor assembled using the CNT–rGO hybrids in ionic liquid electrolyte (1-ethyl-3-methylimidazolium tetrafluoroborate) shows excellent stability upon 500 bending cycles with the gravimetric energy density measuring 23.7 Wh/kg and a power density of 2.0 kW/kg. Furthermore, it shows an impedance phase angle of −64.4° at a frequency of 120 Hz, suggesting good potentials for 120 Hz alternating current line filtering applications. - Graphical abstract: Flexible and highly conductive carbon nanotube-reduced graphene oxide nanohybrid. - Highlights: • Direct growth of carbon nanotubes by chemical vapor deposition on air-sprayed graphene oxide paper. • Two-dimensional carbon nanohybrid with excellent conductivity and mechanical flexibility. • Supercapacitor with excellent performance stability upon mechanical deformation for flexible electronics applications. • Supercapacitor with high impedance phase angle for 120 Hz alternating current line filtering applications.},
doi = {10.1016/J.JSSC.2014.03.030},
url = {https://www.osti.gov/biblio/22475556},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 224,
place = {United States},
year = {2015},
month = {4}
}
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