Covalent functionalization of electrochemically exfoliated 1T-MoS2 nanosheets for high-performance supercapacitor electrode

Raheela Naz; Waseem Abbas; Qinglei Liu; Sameera Shafi; Sehrish Gull; Suleman Khan; Tahir Rasheed; Guofen Song; Jiajun Gu

doi:10.1016/j.jallcom.2023.169944

Covalent functionalization of electrochemically exfoliated 1T-MoS₂ nanosheets for high-performance supercapacitor electrode

Raheela Naz
, Waseem Abbas
, Qinglei Liu^*
, Sameera Shafi
, Sehrish Gull
, Suleman Khan
, Tahir Rasheed
, Guofen Song
, Jiajun Gu

^*Corresponding author for this work

Interdisciplinary Research Center for Advanced Materials

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Covalently functionalized 1T-MoS₂ (Fc-1T-MoS₂) nanosheets are synthesized by the chemical reaction between electrochemically exfoliated 1T-MoS₂ nanosheets and iodobenzene. The NH₂Ph ring functionality and 1T-MoS₂ phase improves the electrochemical performance for supercapacitors by enhancing the charge density and electronic properties, which leads to fast charge transport and high charge storage capacity. The Fc-1T-MoS₂ has a high specific capacitance of 501 F g⁻¹ at a current density of 1 A g⁻¹ with capacitance retention of 76.32% after 2000 cycles, which is 2.6 times of magnitude higher than that of bare 1T-MoS₂ nanosheets. This study exposes the effect of functionalization of MoS₂ nanosheets for supercapacitor applications.

Original language	English
Article number	169944
Journal	Journal of Alloys and Compounds
Volume	951
DOIs	https://doi.org/10.1016/j.jallcom.2023.169944
State	Published - 5 Aug 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

Electrochemical exfoliation
Functionalized 1T-MoS
Nanosheets
Supercapacitors

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2023.169944

Cite this

@article{a9be4b82358d4e52bced4a70e818d57c,

title = "Covalent functionalization of electrochemically exfoliated 1T-MoS2 nanosheets for high-performance supercapacitor electrode",

abstract = "Covalently functionalized 1T-MoS2 (Fc-1T-MoS2) nanosheets are synthesized by the chemical reaction between electrochemically exfoliated 1T-MoS2 nanosheets and iodobenzene. The NH2Ph ring functionality and 1T-MoS2 phase improves the electrochemical performance for supercapacitors by enhancing the charge density and electronic properties, which leads to fast charge transport and high charge storage capacity. The Fc-1T-MoS2 has a high specific capacitance of 501 F g−1 at a current density of 1 A g−1 with capacitance retention of 76.32\% after 2000 cycles, which is 2.6 times of magnitude higher than that of bare 1T-MoS2 nanosheets. This study exposes the effect of functionalization of MoS2 nanosheets for supercapacitor applications.",

keywords = "Electrochemical exfoliation, Functionalized 1T-MoS, Nanosheets, Supercapacitors",

author = "Raheela Naz and Waseem Abbas and Qinglei Liu and Sameera Shafi and Sehrish Gull and Suleman Khan and Tahir Rasheed and Guofen Song and Jiajun Gu",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = aug,

day = "5",

doi = "10.1016/j.jallcom.2023.169944",

language = "English",

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TY - JOUR

T1 - Covalent functionalization of electrochemically exfoliated 1T-MoS2 nanosheets for high-performance supercapacitor electrode

AU - Naz, Raheela

AU - Abbas, Waseem

AU - Liu, Qinglei

AU - Shafi, Sameera

AU - Gull, Sehrish

AU - Khan, Suleman

AU - Rasheed, Tahir

AU - Song, Guofen

AU - Gu, Jiajun

PY - 2023/8/5

Y1 - 2023/8/5

N2 - Covalently functionalized 1T-MoS2 (Fc-1T-MoS2) nanosheets are synthesized by the chemical reaction between electrochemically exfoliated 1T-MoS2 nanosheets and iodobenzene. The NH2Ph ring functionality and 1T-MoS2 phase improves the electrochemical performance for supercapacitors by enhancing the charge density and electronic properties, which leads to fast charge transport and high charge storage capacity. The Fc-1T-MoS2 has a high specific capacitance of 501 F g−1 at a current density of 1 A g−1 with capacitance retention of 76.32% after 2000 cycles, which is 2.6 times of magnitude higher than that of bare 1T-MoS2 nanosheets. This study exposes the effect of functionalization of MoS2 nanosheets for supercapacitor applications.

AB - Covalently functionalized 1T-MoS2 (Fc-1T-MoS2) nanosheets are synthesized by the chemical reaction between electrochemically exfoliated 1T-MoS2 nanosheets and iodobenzene. The NH2Ph ring functionality and 1T-MoS2 phase improves the electrochemical performance for supercapacitors by enhancing the charge density and electronic properties, which leads to fast charge transport and high charge storage capacity. The Fc-1T-MoS2 has a high specific capacitance of 501 F g−1 at a current density of 1 A g−1 with capacitance retention of 76.32% after 2000 cycles, which is 2.6 times of magnitude higher than that of bare 1T-MoS2 nanosheets. This study exposes the effect of functionalization of MoS2 nanosheets for supercapacitor applications.

KW - Electrochemical exfoliation

KW - Functionalized 1T-MoS

KW - Nanosheets

KW - Supercapacitors

UR - https://www.scopus.com/pages/publications/85151730181

U2 - 10.1016/j.jallcom.2023.169944

DO - 10.1016/j.jallcom.2023.169944

M3 - Article

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SN - 0925-8388

VL - 951

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 169944

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