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3D hierarchical transition-metal sulfides deposited on MXene as binder-free electrode for high-performance supercapacitors
Li,Hui1; Chen,Xin2; Zalnezhad,Erfan3; Hui,K. N.4; Hui,K. S.5; Ko,Min Jae1
2020-02-25
Source PublicationJournal of Industrial and Engineering Chemistry
ISSN1226-086X
Volume82Pages:309-316
Abstract

MXene has been considered as a promising two-dimensional material for supercapacitors owing to its large surface area, high conductivity, and excellent cycling stability. However, its low specific capacitance restricts its extensive applications. Therefore, to address the issue, we homogeneously deposited NiCo2S4 nanoflakes on the surface of MXene on conductive nickel foam (denoted as MXene-NiCo2S4@NF), which was used as a composite binder-free electrode for supercapacitor applications. The NiCo2S4 nanoflakes increased the surface area of the composite electrode, thereby increasing its specific capacity from 106.34 C g−1 to 596.69 C g−1 at 1 A g−1. Compared to the pristine MXene, MXene-NiCo2S4@NF maintained the high retention rate of pristine MXene and exhibited excellent cycling stability with 80.4% of its initial specific capacity after 3000 cycles. The composite electrode exhibited improved electrochemical performance for supercapacitors, owing to the combined merits of NiCo2S4 (high specific capacity) and MXene (high retention rate and good cycling stability. The fabricated asymmetric solid-state supercapacitor using MXene-NiCo2S4 as a positive electrode and active carbon as a negative electrode, exhibited an energy density of 27.24 Wh kg−1 at 0.48 kW kg−1 of power density.

KeywordAsymmetric Capacitor Binder-free Electrostatic Interactions Mxene Nico2s4
DOI10.1016/j.jiec.2019.10.028
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000509616700036
PublisherELSEVIER SCIENCE INC, STE 800, 230 PARK AVE, NEW YORK, NY 10169 USA
Scopus ID2-s2.0-85075394989
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Citation statistics
Cited Times [WOS]:58   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorZalnezhad,Erfan; Hui,K. N.; Hui,K. S.; Ko,Min Jae
Affiliation1.Department of Chemical Engineering,Hanyang University,Seoul,222 Wangsimni-ro,04763,South Korea
2.Department of Mechanical Convergence Engineering,Hanyang University,Seoul,222 Wangsimni-ro,04763,South Korea
3.Department of Biomedical Engineering,University of Texas at San Antonio (UTSA),San Antonio,78249,United States
4.Institute of Applied Physics and Materials Engineering,University of Macau,Avenida da Universidade,Taipa,999078,China
5.School of Engineering,University of East Anglia,Norwich,NR4 7TJ,United Kingdom
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Li,Hui,Chen,Xin,Zalnezhad,Erfan,et al. 3D hierarchical transition-metal sulfides deposited on MXene as binder-free electrode for high-performance supercapacitors[J]. Journal of Industrial and Engineering Chemistry,2020,82:309-316.
APA Li,Hui,Chen,Xin,Zalnezhad,Erfan,Hui,K. N.,Hui,K. S.,&Ko,Min Jae.(2020).3D hierarchical transition-metal sulfides deposited on MXene as binder-free electrode for high-performance supercapacitors.Journal of Industrial and Engineering Chemistry,82,309-316.
MLA Li,Hui,et al."3D hierarchical transition-metal sulfides deposited on MXene as binder-free electrode for high-performance supercapacitors".Journal of Industrial and Engineering Chemistry 82(2020):309-316.
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