Performance enhancement approach for supercapacitor by using mango kernels derived activated carbon electrode with p-hydroxyaniline based redox additive electrolyte

Jain, Dharmendra; Kanungo, Jitendra; Tripathi, Santosh Kumar

doi:10.1016/j.matchemphys.2019.02.060

Cited by 33 publications

(14 citation statements)

References 33 publications

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“…The origin of these phenomena is due to the redox reactions of PAP (containing –OH and –NH 2 groups) in sulfuric acid solution. [ 58 ] Moreover, the introduction of PAP can also form hydrogen bond and complexation with PA‐treated carbon material, which further improves the electrochemical performance. This redox mechanism can be observed in Figure 1 and the possible redox reactions between –OH groups on the carbon surface and PAP are listed in Figure S3b in the Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

Integrating Effect of Surface Modification of Microporous Carbon by Phosphorus/Oxygen as well as the Redox Additive of p‐Aminophenol for High‐Performance Supercapacitors

Tang

Zhong

Líu

et al. 2020

Adv Materials Inter

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In present work, commercial microporous carbon materials are modified on the surface with phosphorus/oxygen species by using phytic acid as sole dopant, which plays crucial effect on the carbon structure, wettability, electrical conductivity, and capacitive behaviors. It reveals that with increasing the content of heteroatoms, the porosity and contact angle are decreased but the conductivity turns much larger. Furthermore, p‐aminophenol is introduced to serve as redox additive, which can produce more active surface sites by forming hydrogen bond and complexation with the surface functional groups, further providing additional pseudo‐capacitance. As a result, the energy density of carbon sample by phosphorus/oxygen doping in 1 m H2SO4 electrolyte with p‐aminophenol is as high as 9.2 Wh kg−1, which is 2.6 than that of pristine carbon. What is more, in terms of the simple operation and effective performance, the integration of surface modification toward carbon materials and redox additive can be favorable for largely enhancing the supercapacitor performance.

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Section: Resultsmentioning

confidence: 99%

Integrating Effect of Surface Modification of Microporous Carbon by Phosphorus/Oxygen as well as the Redox Additive of p‐Aminophenol for High‐Performance Supercapacitors

Tang

Zhong

Líu

et al. 2020

Adv Materials Inter

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“…Finally, in a very recent study by Jain et al [29], activated carbon electrode was used to achieve both EDL super-capacitance and hybrid super-capacitance, by simply adding a redox agent (p-hydroxyaniline) to the electrolyte (aqueous sulphuric acid), rather than employing the synergistic effect of different electrode materials [4,8,177]. This can pave the way for new designs of hybrid SCs with unique features and therefore, further investigation is recommended.…”

Section: Conclusion and Recommendationsmentioning

confidence: 88%

“…Lastly, hybrid supercapacitors are those formed by combining certain aspects of EDLCs with those of pseudocapacitors. Jain et al [29] report the onset of Faradaic reaction in carbon electrode SC system with the introduction of p-hydroxyaniline to 1 M aqueous sulphuric-acid electrolyte. This could be a lead to designing hybrid SCs with carbon electrodes using mixed electrolytes.…”

Section: Ultracapacitors or Supercapacitors (Scs)mentioning

confidence: 99%

Recent trends in non-faradaic supercapacitor electrode materials

2019

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Global demand for energy is on a progressive increase and there is a need for environmentally friendly technologies to meet this demand. Electrochemical energy systems are hinged on clean and sustainable technologies. The latest trend in electrochemical energy systems is the supercapacitors (SCs). SCs are famous for their attractive properties: power density, charging time, life cycle, operational safety, and simplicity. However, their energy density is generally low and to a great extent, this parameter is invariably dependent on the nature of electrode material used. While high energy density is being sought for in SCs, it is necessary to keep abreast of recent electrode materials and their practical performances. This paper gives a concise description of capacitors with a focus on the non-Faradaic SCs. It also compendiously presents an overview of carbon electrode materials with their practical performances (specific surface area, specific capacitance, energy and power densities) for non-Faradaic SCs, with reference to more than 100 reputable works. Development and investigation of highly active carbon materials with optimized electrolytic compatibilities and manipulative morphologies and pore structures were recommended.

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“…In an effort to improve the EDLC, carbon-based electrodes have played an important role. Several nanostructured carbons, including graphene, carbon nanotubes, carbon nanofibers, have been studied, but activated carbon is preferred due to its low cost for production and environmental reasons [15]. Activated carbon can be prepared through physical/chemical processes with baobab fruit shell, coir pith, cucumis melo fruit peel, teakwood sawdust, and it is possible to fabricate electrode of energy storage devices with low cost [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

2021

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In this study, we investigated that the activated carbon (AC)-based supercapacitor and introduced SIFSIX-3-Ni as a porous conducting additive to increase its electrochemical performances of AC/SIFSIX-3-Ni composite-based supercapacitor. The AC/SIFSIX-3-Ni composites are coated onto the aluminum substrate using the doctor blade method and conducted an ion-gel electrolyte to produce a symmetrical supercapacitor. The electrochemical properties of the AC/SIFSIX-3-Ni composite-based supercapacitor are evaluated through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge tests (GCD). The AC/SIFSIX-3-Ni composite-based supercapacitor showed reasonable capacitive behavior in various electrochemical measurements, including CV, EIS, and GCD. The highest specific capacitance of the AC/SIFSIX-3-Ni composite-based supercapacitor was 129 F g−1 at 20 mV s−1.

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Performance enhancement approach for supercapacitor by using mango kernels derived activated carbon electrode with p-hydroxyaniline based redox additive electrolyte

Cited by 33 publications

References 33 publications

Integrating Effect of Surface Modification of Microporous Carbon by Phosphorus/Oxygen as well as the Redox Additive of p‐Aminophenol for High‐Performance Supercapacitors

Integrating Effect of Surface Modification of Microporous Carbon by Phosphorus/Oxygen as well as the Redox Additive of p‐Aminophenol for High‐Performance Supercapacitors

Recent trends in non-faradaic supercapacitor electrode materials

Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

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