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Cited by 448

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

Hierarchically Structured Ni3S2/Carbon Nanotube Composites as High Performance Cathode Materials for Asymmetric Supercapacitors

Dai, Chao-Shuan, Chien, Pei-Yi, Lin, Jeng-Yu, Chou, Shu-Wei, Wu, Wen-Kai, Li, Ping-Hsuan, Wu, Kuan-Yi, Lin, Tsung-Wu·2013·ACS Applied Materials & Interfaces
DOI 10.1021/am404196s
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Abstract

The Ni3S2 nanoparticles with the diameters ranging from 10 to 80 nm are grown on the backbone of conductive multiwalled carbon nanotubes (MWCNTs) using a glucose-assisted hydrothermal method. It is found that the Ni3S2 nanoparticles deposited on MWCNTs disassemble into smaller components after the composite electrode is activated by the consecutive cyclic voltammetry scan in a 2 M KOH solution. Therefore, the active surface area of the Ni3S2 nanoparticles is increased, which further enhances the capacitive performance of the composite electrode. Because the synergistic effect of the Ni3S2 nanoparticles and MWCNTs on the capacitive performance of the composite electrode is pronounced, the composite electrode shows a high specific capacitance of 800 F/g and great cycling stability at a current density of 3.2 A/g. To examine the capacitive performance of the composite electrode in a full-cell configuration, an asymmetric supercapacitor device was fabricated by using the composite of Ni3S2 and MWCNTs as the cathode and activated carbon as the anode. The fabricated device can be operated reversibly between 0 and 1.6 V, and obtain a high specific capacitance of 55.8 F/g at 1 A/g, which delivers a maximum energy density of 19.8 Wh/kg at a power density of 798 W/kg. Furthermore, the asymmetric supercapacitor shows great stability based on the fact that the device retains 90% of its initial capacitance after a consecutive 5000 cycles of galvanostatic charge-discharge performed at a current density of 4 A/g.

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Metadata

Authors
Dai, C.-S., Chien, P.-Y., Lin, J.-Y., Chou, S.-W., Wu, W.-K., Li, P.-H., Wu, K.-Y., & Lin, T.-W.
Venue
ACS Applied Materials & Interfaces
Publisher
American Chemical Society (ACS)
Published
2013-11-18
Volume
5
Issue
22
Pages
12168-12174
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
DOI
10.1021/am404196s
OpenAlex
W2333910605
Cited by
448
References
27
FWCI
11.54
Type
journal article
Language
en
Open access
closed

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