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Enhancing Supercapacitor Performance of NiCoMn‐Layered Double Hydroxide with Ag–Citrate/Polyaniline Nanocomposites.

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Title: Enhancing Supercapacitor Performance of NiCoMn‐Layered Double Hydroxide with Ag–Citrate/Polyaniline Nanocomposites.
Authors: Makda, Ammar1 (AUTHOR), Marwat, Mohsin Ali1,2 (AUTHOR) mohsin.ali@giki.edu.pk, Mahmood, Muhammad Hamza1 (AUTHOR), Naeem, Abdullah1 (AUTHOR), Abdullah, Syed Muhammad1 (AUTHOR), Humayun, Muhammad2 (AUTHOR), Karim, Muhammad Ramzan Abdul1 (AUTHOR), Bououdina, Mohamed2 (AUTHOR), Khan, Muhammad Zubair3 (AUTHOR), Hanif, Muhammad Bilal4 (AUTHOR)
Source: Energy Technology. Jul2025, Vol. 13 Issue 7, p1-11. 11p.
Subject Terms: Supercapacitor performance, Layered double hydroxides, Energy density, Carbon electrodes, Power density, Supercapacitors
Abstract: Layered double hydroxide (LDH) has a layered structure, which makes it a strong candidate for supercapacitors (SC) due to its high surface area. However, they suffer from low conductivity due to insufficient charge transfer across their layers. This research aims to overcome this obstacle by introducing conductive channels among the layers by the addition of Ag–citrate and polyaniline (PANI). Consequently, five electrodes (S1–5) were made from NiCoMn LDH (referred to as LDH henceforth) and 2:1 Ag–citrate and PANI composite (Ag/PANI) in different ratios and made into electrodes. Electrochemical analysis revealed successful improvement in the performance of LDH as the fraction of Ag/PANI increased until it equaled Ag/PANI where the highest specific capacitance of 617 F g−1 was obtained, which is 12% greater than the value for solely LDH electrode (550 F g−1). A device was fabricated with the best electrode (S3) and activated carbon electrode, which demonstrated energy densities and power densities of 41 WhKg−1 and 412.5 W Kg−1 and 14 WhKg−1and 8250 W Kg−1 at 0.5 and 10 A g−1 current densities, respectively. It also exhibited a capacitive retention of about 75% at 3000 galvanostatic charge–discharge cycles. These results encourage the use in of NiCoMn LDH, in a 1:1 ratio with Ag/PANI in SCs due to its remarkable performance. [ABSTRACT FROM AUTHOR]
Copyright of Energy Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Enhancing Supercapacitor Performance of NiCoMn‐Layered Double Hydroxide with Ag–Citrate/Polyaniline Nanocomposites.
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  Data: <searchLink fieldCode="AR" term="%22Makda%2C+Ammar%22">Makda, Ammar</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Marwat%2C+Mohsin+Ali%22">Marwat, Mohsin Ali</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> mohsin.ali@giki.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Mahmood%2C+Muhammad+Hamza%22">Mahmood, Muhammad Hamza</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Naeem%2C+Abdullah%22">Naeem, Abdullah</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Abdullah%2C+Syed+Muhammad%22">Abdullah, Syed Muhammad</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Humayun%2C+Muhammad%22">Humayun, Muhammad</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Karim%2C+Muhammad+Ramzan+Abdul%22">Karim, Muhammad Ramzan Abdul</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bououdina%2C+Mohamed%22">Bououdina, Mohamed</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Khan%2C+Muhammad+Zubair%22">Khan, Muhammad Zubair</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hanif%2C+Muhammad+Bilal%22">Hanif, Muhammad Bilal</searchLink><relatesTo>4</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Energy+Technology%22">Energy Technology</searchLink>. Jul2025, Vol. 13 Issue 7, p1-11. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Supercapacitor+performance%22">Supercapacitor performance</searchLink><br /><searchLink fieldCode="DE" term="%22Layered+double+hydroxides%22">Layered double hydroxides</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+electrodes%22">Carbon electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Power+density%22">Power density</searchLink><br /><searchLink fieldCode="DE" term="%22Supercapacitors%22">Supercapacitors</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Layered double hydroxide (LDH) has a layered structure, which makes it a strong candidate for supercapacitors (SC) due to its high surface area. However, they suffer from low conductivity due to insufficient charge transfer across their layers. This research aims to overcome this obstacle by introducing conductive channels among the layers by the addition of Ag–citrate and polyaniline (PANI). Consequently, five electrodes (S1–5) were made from NiCoMn LDH (referred to as LDH henceforth) and 2:1 Ag–citrate and PANI composite (Ag/PANI) in different ratios and made into electrodes. Electrochemical analysis revealed successful improvement in the performance of LDH as the fraction of Ag/PANI increased until it equaled Ag/PANI where the highest specific capacitance of 617 F g−1 was obtained, which is 12% greater than the value for solely LDH electrode (550 F g−1). A device was fabricated with the best electrode (S3) and activated carbon electrode, which demonstrated energy densities and power densities of 41 WhKg−1 and 412.5 W Kg−1 and 14 WhKg−1and 8250 W Kg−1 at 0.5 and 10 A g−1 current densities, respectively. It also exhibited a capacitive retention of about 75% at 3000 galvanostatic charge–discharge cycles. These results encourage the use in of NiCoMn LDH, in a 1:1 ratio with Ag/PANI in SCs due to its remarkable performance. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energy Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/ente.202401730
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      – Code: eng
        Text: English
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        PageCount: 11
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    Subjects:
      – SubjectFull: Supercapacitor performance
        Type: general
      – SubjectFull: Layered double hydroxides
        Type: general
      – SubjectFull: Energy density
        Type: general
      – SubjectFull: Carbon electrodes
        Type: general
      – SubjectFull: Power density
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      – SubjectFull: Supercapacitors
        Type: general
    Titles:
      – TitleFull: Enhancing Supercapacitor Performance of NiCoMn‐Layered Double Hydroxide with Ag–Citrate/Polyaniline Nanocomposites.
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              M: 07
              Text: Jul2025
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