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Utilization of Coinage Metals as an Efficient Dopant Protocol for Enhancing Asymmetric Supercapacitors and Oxygen Evolution Reactions.

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Title: Utilization of Coinage Metals as an Efficient Dopant Protocol for Enhancing Asymmetric Supercapacitors and Oxygen Evolution Reactions.
Authors: Meghwar, Ambedker1 (AUTHOR), Raza, Ahmed1 (AUTHOR), Kumar, Haresh1 (AUTHOR), Parmar, Jethanand1 (AUTHOR), Dars, Wanhinyal1 (AUTHOR), Mangi, Rameez1 (AUTHOR), Bhellar, Masroor Ali1 (AUTHOR), Hussain, Fida1 (AUTHOR), Das, Ghansham1 (AUTHOR), Ali, Kashif1 (AUTHOR), Tahira, Aneela2 (AUTHOR), Bhatti, Muhammad Ali3 (AUTHOR) mali.bhatti@usindh.edu.pk, Dawi, Elmuez4 (AUTHOR), Ibrahim, Rafat M.5 (AUTHOR), Vigolo, Brigitte6 (AUTHOR), Lighari, Jawaid Ali3 (AUTHOR), Ibupoto, Zafar Hussain1 (AUTHOR) zaffar.ibhupoto@usindh.edu.pk
Source: Polymers for Advanced Technologies. May2025, Vol. 36 Issue 5, p1-11. 11p.
Subjects: Oxygen evolution reactions, Fourier transform infrared spectroscopy, Supercapacitor performance, Energy conversion, Energy density, Supercapacitor electrodes
Abstract: Doped polyaniline (PANI) was synthesized using low concentrations of Ag and Cu coinage metals in order to evaluate their impact on energy conversion and storage performances. During the preparation of PANI, a chemical oxidation polymerization process was followed by concurrent doping with Ag and Cu. The nanoparticles were found to have typical orientations when examined by scanning electron microscopy (SEM). X‐ray diffraction (XRD) was used to examine the crystal structure of the synthesized doped PANI materials, which confirmed their crystalline nature. Ag‐Cu‐doped PANI samples demonstrated a more pronounced reduction in optical band gap as compared to other doped samples. Based on Fourier transform infrared spectroscopy (FTIR) analysis, it can be concluded that the synthesized materials possess large functional groups. Compared to other enhanced PANI materials in an alkaline electrolyte, Ag‐Cu enriched PANI exhibited superior oxygen evolution reaction (OER) and supercapacitor performances. The presence of the oxygen evolution reaction activity (OER) in a 1 M KOH solution was observed at an overpotential of 340 mV at a current density of 10 mA/cm2. Using Ag‐Cu‐doped PANI as the anode electrode material, asymmetric supercapacitors produced an energy density of 211.75 W h/kg at a current density of 4.5 A/g, demonstrating their superior performance. The obtained results described high cycle stability over 50,000 galvanic charge–discharge cycles at a current density of 4.5 A/g, and a 102% capacitance retention rate was described by the electrode material. Despite low concentrations of Ag and Cu dopants, the coinage metals can be effectively used as dopants for the fabrication of next‐generation practical energy storage devices. [ABSTRACT FROM AUTHOR]
Copyright of Polymers for Advanced Technologies 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: Utilization of Coinage Metals as an Efficient Dopant Protocol for Enhancing Asymmetric Supercapacitors and Oxygen Evolution Reactions.
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  Data: <searchLink fieldCode="AR" term="%22Meghwar%2C+Ambedker%22">Meghwar, Ambedker</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Raza%2C+Ahmed%22">Raza, Ahmed</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kumar%2C+Haresh%22">Kumar, Haresh</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Parmar%2C+Jethanand%22">Parmar, Jethanand</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dars%2C+Wanhinyal%22">Dars, Wanhinyal</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mangi%2C+Rameez%22">Mangi, Rameez</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bhellar%2C+Masroor+Ali%22">Bhellar, Masroor Ali</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hussain%2C+Fida%22">Hussain, Fida</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Das%2C+Ghansham%22">Das, Ghansham</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ali%2C+Kashif%22">Ali, Kashif</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tahira%2C+Aneela%22">Tahira, Aneela</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bhatti%2C+Muhammad+Ali%22">Bhatti, Muhammad Ali</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> mali.bhatti@usindh.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Dawi%2C+Elmuez%22">Dawi, Elmuez</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ibrahim%2C+Rafat+M%2E%22">Ibrahim, Rafat M.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vigolo%2C+Brigitte%22">Vigolo, Brigitte</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lighari%2C+Jawaid+Ali%22">Lighari, Jawaid Ali</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ibupoto%2C+Zafar+Hussain%22">Ibupoto, Zafar Hussain</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zaffar.ibhupoto@usindh.edu.pk</i>
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  Data: <searchLink fieldCode="JN" term="%22Polymers+for+Advanced+Technologies%22">Polymers for Advanced Technologies</searchLink>. May2025, Vol. 36 Issue 5, p1-11. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Oxygen+evolution+reactions%22">Oxygen evolution reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Supercapacitor+performance%22">Supercapacitor performance</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+conversion%22">Energy conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br /><searchLink fieldCode="DE" term="%22Supercapacitor+electrodes%22">Supercapacitor electrodes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Doped polyaniline (PANI) was synthesized using low concentrations of Ag and Cu coinage metals in order to evaluate their impact on energy conversion and storage performances. During the preparation of PANI, a chemical oxidation polymerization process was followed by concurrent doping with Ag and Cu. The nanoparticles were found to have typical orientations when examined by scanning electron microscopy (SEM). X‐ray diffraction (XRD) was used to examine the crystal structure of the synthesized doped PANI materials, which confirmed their crystalline nature. Ag‐Cu‐doped PANI samples demonstrated a more pronounced reduction in optical band gap as compared to other doped samples. Based on Fourier transform infrared spectroscopy (FTIR) analysis, it can be concluded that the synthesized materials possess large functional groups. Compared to other enhanced PANI materials in an alkaline electrolyte, Ag‐Cu enriched PANI exhibited superior oxygen evolution reaction (OER) and supercapacitor performances. The presence of the oxygen evolution reaction activity (OER) in a 1 M KOH solution was observed at an overpotential of 340 mV at a current density of 10 mA/cm2. Using Ag‐Cu‐doped PANI as the anode electrode material, asymmetric supercapacitors produced an energy density of 211.75 W h/kg at a current density of 4.5 A/g, demonstrating their superior performance. The obtained results described high cycle stability over 50,000 galvanic charge–discharge cycles at a current density of 4.5 A/g, and a 102% capacitance retention rate was described by the electrode material. Despite low concentrations of Ag and Cu dopants, the coinage metals can be effectively used as dopants for the fabrication of next‐generation practical energy storage devices. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Polymers for Advanced Technologies 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/pat.70208
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        Text: English
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      – SubjectFull: Fourier transform infrared spectroscopy
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      – SubjectFull: Supercapacitor performance
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      – SubjectFull: Supercapacitor electrodes
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      – TitleFull: Utilization of Coinage Metals as an Efficient Dopant Protocol for Enhancing Asymmetric Supercapacitors and Oxygen Evolution Reactions.
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