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Supercapacitor performance of nickel-cobalt sulfide nanotubes decorated using Ni Co-layered double hydroxide nanosheets grown in situ on Ni foam
Xin,Chen1; Ang,Li1; Musharavati,Farayi2; Jaber,Fadi3; Hui,Li4; Zalnezhad,Erfan1,5; Bae,Sungchul6; Hui,Kwan San7; Hui,Kwun Nam8
2020-03
Source PublicationNanomaterials
ISSN2079-4991
Volume10Issue:3
Abstract

In this study, to fabricate a non-binder electrode, we grew nickel–cobalt sulfide (NCS) nanotubes (NTs) on a Ni foam substrate using a hydrothermal method through a two-step approach, namely in situ growth and an anion-exchange reaction. This was followed by the electrodeposition of double-layered nickel-cobalt hydroxide (NCOH) over a nanotube-coated substrate to fabricate NCOH core-shell nanotubes. The final product is called NCS@NCOH herein. Structural and morphological analyses of the synthesized electrode materials were conducted via SEM and XRD. Different electrodeposition times were selected, including 10, 20, 40, and 80 s. The results indicate that the NCSNTs electrodeposited with NCOH nanosheets for 40 s have the highest specific capacitance (SC), cycling stability (2105 Fg−1 at a current density of 2 Ag−1), and capacitance retention (65.1% after 3,000 cycles), in comparison with those electrodeposited for 10, 20, and 80 s. Furthermore, for practical applications, a device with negative and positive electrodes made of active carbon and NCS@NCOH was fabricated, achieving a high-energy density of 23.73 Whkg−1 at a power density of 400 Wkg−1.

KeywordAsymmetric Supercapacitor Ncs@ncoh Nanotubes Positive Electrode Material
DOI10.3390/nano10030584
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000526090400184
PublisherMDPI, ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND
Scopus ID2-s2.0-85082670335
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Citation statistics
Cited Times [WOS]:9   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorZalnezhad,Erfan; Bae,Sungchul; Hui,Kwan San; Hui,Kwun Nam
Affiliation1.Department of Mechanical Convergence Engineering,Hanyang University,Seoul,222 Wangsimni-ro, Seongdong-gu,04763,South Korea
2.Department of Mechanical and Industrial Engineering,College of Engineering,Qatar University,Doha,2713,Qatar
3.Department of Biomedical Engineering,Ajman University,Ajman,346,United Arab Emirates
4.Department of Chemical Engineering,Hanyang University,Seoul,222 Wangsimni-ro, Seongdong-gu,04763,South Korea
5.Department of Biomedical Engineering,University of Texas at San Antonio,78249,United States
6.Department of Architectural Engineering,Hanyang University,Seoul,04763,South Korea
7.Engineering,Faculty of Science,University of East Anglia,Norwich,NR4 7TJ,United Kingdom
8.Joint Key Laboratory of the Ministry of Education,Institute of Applied Physics and Materials Engineering,University of Macau,Taipa,Avenida da Universidade,999078,Macao
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Xin,Chen,Ang,Li,Musharavati,Farayi,et al. Supercapacitor performance of nickel-cobalt sulfide nanotubes decorated using Ni Co-layered double hydroxide nanosheets grown in situ on Ni foam[J]. Nanomaterials,2020,10(3).
APA Xin,Chen,Ang,Li,Musharavati,Farayi,Jaber,Fadi,Hui,Li,Zalnezhad,Erfan,Bae,Sungchul,Hui,Kwan San,&Hui,Kwun Nam.(2020).Supercapacitor performance of nickel-cobalt sulfide nanotubes decorated using Ni Co-layered double hydroxide nanosheets grown in situ on Ni foam.Nanomaterials,10(3).
MLA Xin,Chen,et al."Supercapacitor performance of nickel-cobalt sulfide nanotubes decorated using Ni Co-layered double hydroxide nanosheets grown in situ on Ni foam".Nanomaterials 10.3(2020).
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