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High performance solid-state flexible supercapacitor based on Fe3O4/carbon nanotube/polyaniline ternary films.
- Source :
- Journal of Materials Chemistry A; 6/14/2017, Vol. 5 Issue 22, p11271-11277, 7p
- Publication Year :
- 2017
-
Abstract
- A novel flexible nanoarchitecture was fabricated via the facile electropolymerization of a polyaniline (PANI) network on Fe<subscript>3</subscript>O<subscript>4</subscript> particles grown axially on carbon nanotubes (CNTs) of a CNT film for supercapacitor electrode applications. The PANI chains serve as a protective shell to improve the structural stability of the Fe<subscript>3</subscript>O<subscript>4</subscript> particles. The resulting supercapacitor exhibits a high specific energy density of 28.0 W h kg<superscript>−1</superscript>, high specific power density of 5.3 kW kg<superscript>−1</superscript> and specific capacitance of 201 F g<superscript>−1</superscript> at a scan rate of 20 mV s<superscript>−1</superscript>, surpassing the performances observed for many recently reported flexible supercapacitors. Furthermore, the CNT film-Fe<subscript>3</subscript>O<subscript>4</subscript>-PANI supercapacitor demonstrates excellent cyclic stability with only a 3.6% loss of its initial specific capacitance after 10 000 charge–discharge cycles. These results suggest that the CNT film-Fe<subscript>3</subscript>O<subscript>4</subscript>-PANI composite is very promising for next generation high-performance supercapacitors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507488
- Volume :
- 5
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry A
- Publication Type :
- Academic Journal
- Accession number :
- 123452232
- Full Text :
- https://doi.org/10.1039/c7ta02008b