Fabrication of Ag-doped MnO2 nanosheets@carbon cloth for energy storage device

Anis Ur Rahman; Nighat Zarshad; Jianghua Wu; Faisal Faiz; Fazal Raziq; Asad Ali; Guigen Li; Henmei Ni

doi:10.1016/j.mseb.2021.115150

Fabrication of Ag-doped MnO₂ nanosheets@carbon cloth for energy storage device

Anis Ur Rahman, Nighat Zarshad, Jianghua Wu, Faisal Faiz, Fazal Raziq, Asad Ali, Guigen Li, Henmei Ni

Chemistry and Biochemistry

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

Abstract

In this article, we report an electrode of uniform and ultrathin nanosheets of silver-doped manganese oxide (Ag₂-MnO₂) synthesized on carbon cloth through a hydrothermal method with an outstanding specific capacitance for the high-performance aqueous asymmetrical supercapacitor. The Ag₂-MnO₂ electrode bears the highest specific capacitance of 350 F g⁻¹ at 1 A g⁻¹ and 280 F g⁻¹ at a current density of 40 A g⁻¹. Besides, an aqueous asymmetric supercapacitor (Ag₂-MnO₂//AC) assembled with Ag₂-MnO₂ as a positive electrode exhibits a wide potential window of 0–2.0 V and a remarkable energy density of 54 Wh kg⁻¹ at a power density of 2000 W kg⁻¹. Energy density of 26 Wh kg⁻¹ is retained even at a higher power density of 19500 W kg⁻¹. This device offers excellent cycling stability and capacitance retention of 80% after 10,000 GCD cycles.

Original language	English
Article number	115150
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	269
DOIs	https://doi.org/10.1016/j.mseb.2021.115150
State	Published - Jul 2021

Keywords

Aqueous asymmetric supercapacitor
Hydrothermal synthesis
Manganese oxides
Metal doping

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@article{fae630d9809e4e0bbd636c2edb1b108f,

title = "Fabrication of Ag-doped MnO2 nanosheets@carbon cloth for energy storage device",

abstract = "In this article, we report an electrode of uniform and ultrathin nanosheets of silver-doped manganese oxide (Ag2-MnO2) synthesized on carbon cloth through a hydrothermal method with an outstanding specific capacitance for the high-performance aqueous asymmetrical supercapacitor. The Ag2-MnO2 electrode bears the highest specific capacitance of 350 F g−1 at 1 A g−1 and 280 F g−1 at a current density of 40 A g−1. Besides, an aqueous asymmetric supercapacitor (Ag2-MnO2//AC) assembled with Ag2-MnO2 as a positive electrode exhibits a wide potential window of 0–2.0 V and a remarkable energy density of 54 Wh kg−1 at a power density of 2000 W kg−1. Energy density of 26 Wh kg−1 is retained even at a higher power density of 19500 W kg−1. This device offers excellent cycling stability and capacitance retention of 80% after 10,000 GCD cycles.",

keywords = "Aqueous asymmetric supercapacitor, Hydrothermal synthesis, Manganese oxides, Metal doping",

author = "Rahman, {Anis Ur} and Nighat Zarshad and Jianghua Wu and Faisal Faiz and Fazal Raziq and Asad Ali and Guigen Li and Henmei Ni",

note = "Funding Information: We gratefully acknowledge the financial support from Robert A. Welch Foundation (D-1361, USA) and the National Natural Science Foundation of China (No. 21332005 , 21672100 ). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = jul,

doi = "10.1016/j.mseb.2021.115150",

language = "English",

volume = "269",

journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",

issn = "0921-5107",

}

Fabrication of Ag-doped MnO₂ nanosheets@carbon cloth for energy storage device. / Rahman, Anis Ur; Zarshad, Nighat; Wu, Jianghua; Faiz, Faisal; Raziq, Fazal; Ali, Asad; Li, Guigen; Ni, Henmei.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 269, 115150, 07.2021.

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

TY - JOUR

T1 - Fabrication of Ag-doped MnO2 nanosheets@carbon cloth for energy storage device

AU - Rahman, Anis Ur

AU - Zarshad, Nighat

AU - Wu, Jianghua

AU - Faiz, Faisal

AU - Raziq, Fazal

AU - Ali, Asad

AU - Li, Guigen

AU - Ni, Henmei

N1 - Funding Information: We gratefully acknowledge the financial support from Robert A. Welch Foundation (D-1361, USA) and the National Natural Science Foundation of China (No. 21332005 , 21672100 ). Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/7

Y1 - 2021/7

N2 - In this article, we report an electrode of uniform and ultrathin nanosheets of silver-doped manganese oxide (Ag2-MnO2) synthesized on carbon cloth through a hydrothermal method with an outstanding specific capacitance for the high-performance aqueous asymmetrical supercapacitor. The Ag2-MnO2 electrode bears the highest specific capacitance of 350 F g−1 at 1 A g−1 and 280 F g−1 at a current density of 40 A g−1. Besides, an aqueous asymmetric supercapacitor (Ag2-MnO2//AC) assembled with Ag2-MnO2 as a positive electrode exhibits a wide potential window of 0–2.0 V and a remarkable energy density of 54 Wh kg−1 at a power density of 2000 W kg−1. Energy density of 26 Wh kg−1 is retained even at a higher power density of 19500 W kg−1. This device offers excellent cycling stability and capacitance retention of 80% after 10,000 GCD cycles.

AB - In this article, we report an electrode of uniform and ultrathin nanosheets of silver-doped manganese oxide (Ag2-MnO2) synthesized on carbon cloth through a hydrothermal method with an outstanding specific capacitance for the high-performance aqueous asymmetrical supercapacitor. The Ag2-MnO2 electrode bears the highest specific capacitance of 350 F g−1 at 1 A g−1 and 280 F g−1 at a current density of 40 A g−1. Besides, an aqueous asymmetric supercapacitor (Ag2-MnO2//AC) assembled with Ag2-MnO2 as a positive electrode exhibits a wide potential window of 0–2.0 V and a remarkable energy density of 54 Wh kg−1 at a power density of 2000 W kg−1. Energy density of 26 Wh kg−1 is retained even at a higher power density of 19500 W kg−1. This device offers excellent cycling stability and capacitance retention of 80% after 10,000 GCD cycles.

KW - Aqueous asymmetric supercapacitor

KW - Hydrothermal synthesis

KW - Manganese oxides

KW - Metal doping

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M3 - Article

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