Reagents assisted Mg-doped CeO2 for high-performance energy-storage applications

Khurshid  Hussain; Ijaz Ali; Sayed Hasnain; Sayed Sajid Hussain; Basharat Hussain; Muhammad Shehzad Khan; Syed Muhammad Ammar; Bilal Hussain; Aqib Hussain; Muhammad Amir   Javed; Abid Ullah; Saleh Al Arni; Noureddine Elboughdiri; Nadir Abbas

doi:10.1016/j.jelechem.2020.114401

Reagents assisted Mg-doped CeO₂ for high-performance energy-storage applications

Khurshid Hussain, Ijaz Ali, Sayed Hasnain, Sayed Sajid Hussain, Basharat Hussain, Muhammad Shehzad Khan, Syed Muhammad Ammar, Bilal Hussain, Aqib Hussain, Muhammad Amir Javed, Abid Ullah, Saleh Al Arni, Noureddine Elboughdiri, Nadir Abbas^*

^*Corresponding author for this work

Department of Physics

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

18 Citations (Scopus)

Abstract

A novel Mg-doped CeO₂ electrode materials were prepared by simple and cost effective hydrothermal method by using three different reagents (ammonium fluoride, potassium hydroxide and hexamethylenetetramine). Successful preparation was confirmed by using various characterizations. In three electrode setup, CeO₂: Mg-NH₄F, CeO₂: Mg-KOH, and CeO₂: Mg-HMTA showed a high specific capacitance of 432, 275 and 221 F g⁻¹ at 1 A g⁻¹ respectively. After 10,000 continuous cycles of charging and discharging, only 11% fade in the specific capacitance was observed for CeO₂: Mg-NH₄F. Moreover, CeO₂: Mg-NH₄F was used as a positive electrode and (activated carbon) AC as a negative electrode for asymmetric supercapacitor (ASC) device. The highest specific capacity of 130C g⁻¹ at 1 A g⁻¹ was obtained for ASC device. ASC device delivered a high energy density of 28.8 Wh kg⁻¹ at a power density of 775 W kg⁻¹. ASC device showed an excellent retention of 83% and an outstanding coulombic efficiency of 99% after 9000 cycles. All these attractive results suggest the importance of this electrode material towards practical applications.

Original language	English
Article number	114401
Journal	Journal of Electroanalytical Chemistry
Volume	873
Online published	30 Jun 2020
DOIs	https://doi.org/10.1016/j.jelechem.2020.114401
Publication status	Published - 15 Sept 2020

Research Keywords

Mg-doped CeO2
reagents
asymmetric supercapacitor device
nickel foam

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Hussain, K., Ali, I., Hasnain, S., Hussain, S. S., Hussain, B., Khan, M. S., Ammar, S. M., Hussain, B., Hussain, A., Javed, M. A., Ullah, A., Arni, S. A., Elboughdiri, N., & Abbas, N. (2020). Reagents assisted Mg-doped CeO₂ for high-performance energy-storage applications. Journal of Electroanalytical Chemistry, 873, Article 114401. https://doi.org/10.1016/j.jelechem.2020.114401

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title = "Reagents assisted Mg-doped CeO2 for high-performance energy-storage applications",

abstract = "A novel Mg-doped CeO2 electrode materials were prepared by simple and cost effective hydrothermal method by using three different reagents (ammonium fluoride, potassium hydroxide and hexamethylenetetramine). Successful preparation was confirmed by using various characterizations. In three electrode setup, CeO2: Mg-NH4F, CeO2: Mg-KOH, and CeO2: Mg-HMTA showed a high specific capacitance of 432, 275 and 221 F g−1 at 1 A g−1 respectively. After 10,000 continuous cycles of charging and discharging, only 11% fade in the specific capacitance was observed for CeO2: Mg-NH4F. Moreover, CeO2: Mg-NH4F was used as a positive electrode and (activated carbon) AC as a negative electrode for asymmetric supercapacitor (ASC) device. The highest specific capacity of 130C g−1 at 1 A g−1 was obtained for ASC device. ASC device delivered a high energy density of 28.8 Wh kg−1 at a power density of 775 W kg−1. ASC device showed an excellent retention of 83% and an outstanding coulombic efficiency of 99% after 9000 cycles. All these attractive results suggest the importance of this electrode material towards practical applications.",

keywords = "Mg-doped CeO2, reagents, asymmetric supercapacitor device, nickel foam",

author = "Khurshid Hussain and Ijaz Ali and Sayed Hasnain and Hussain, {Sayed Sajid} and Basharat Hussain and Khan, {Muhammad Shehzad} and Ammar, {Syed Muhammad} and Bilal Hussain and Aqib Hussain and Javed, {Muhammad Amir} and Abid Ullah and Arni, {Saleh Al} and Noureddine Elboughdiri and Nadir Abbas",

year = "2020",

month = sep,

day = "15",

doi = "10.1016/j.jelechem.2020.114401",

language = "English",

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journal = "Journal of Electroanalytical Chemistry",

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TY - JOUR

T1 - Reagents assisted Mg-doped CeO2 for high-performance energy-storage applications

AU - Hussain, Khurshid

AU - Ali, Ijaz

AU - Hasnain, Sayed

AU - Hussain, Sayed Sajid

AU - Hussain, Basharat

AU - Khan, Muhammad Shehzad

AU - Ammar, Syed Muhammad

AU - Hussain, Bilal

AU - Hussain, Aqib

AU - Javed, Muhammad Amir

AU - Ullah, Abid

AU - Arni, Saleh Al

AU - Elboughdiri, Noureddine

AU - Abbas, Nadir

PY - 2020/9/15

Y1 - 2020/9/15

N2 - A novel Mg-doped CeO2 electrode materials were prepared by simple and cost effective hydrothermal method by using three different reagents (ammonium fluoride, potassium hydroxide and hexamethylenetetramine). Successful preparation was confirmed by using various characterizations. In three electrode setup, CeO2: Mg-NH4F, CeO2: Mg-KOH, and CeO2: Mg-HMTA showed a high specific capacitance of 432, 275 and 221 F g−1 at 1 A g−1 respectively. After 10,000 continuous cycles of charging and discharging, only 11% fade in the specific capacitance was observed for CeO2: Mg-NH4F. Moreover, CeO2: Mg-NH4F was used as a positive electrode and (activated carbon) AC as a negative electrode for asymmetric supercapacitor (ASC) device. The highest specific capacity of 130C g−1 at 1 A g−1 was obtained for ASC device. ASC device delivered a high energy density of 28.8 Wh kg−1 at a power density of 775 W kg−1. ASC device showed an excellent retention of 83% and an outstanding coulombic efficiency of 99% after 9000 cycles. All these attractive results suggest the importance of this electrode material towards practical applications.

AB - A novel Mg-doped CeO2 electrode materials were prepared by simple and cost effective hydrothermal method by using three different reagents (ammonium fluoride, potassium hydroxide and hexamethylenetetramine). Successful preparation was confirmed by using various characterizations. In three electrode setup, CeO2: Mg-NH4F, CeO2: Mg-KOH, and CeO2: Mg-HMTA showed a high specific capacitance of 432, 275 and 221 F g−1 at 1 A g−1 respectively. After 10,000 continuous cycles of charging and discharging, only 11% fade in the specific capacitance was observed for CeO2: Mg-NH4F. Moreover, CeO2: Mg-NH4F was used as a positive electrode and (activated carbon) AC as a negative electrode for asymmetric supercapacitor (ASC) device. The highest specific capacity of 130C g−1 at 1 A g−1 was obtained for ASC device. ASC device delivered a high energy density of 28.8 Wh kg−1 at a power density of 775 W kg−1. ASC device showed an excellent retention of 83% and an outstanding coulombic efficiency of 99% after 9000 cycles. All these attractive results suggest the importance of this electrode material towards practical applications.

KW - Mg-doped CeO2

KW - reagents

KW - asymmetric supercapacitor device

KW - nickel foam

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DO - 10.1016/j.jelechem.2020.114401

M3 - RGC 21 - Publication in refereed journal

SN - 0368-1874

VL - 873

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

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