Cost-effective akermanite derived from industrial waste for working electrodes in supercapacitor applications

Yadav, P. J.; Raju, M. Krishnam; Gangadhar, M.; Pani, Jitesh; Borkar, Hitesh; Samudrala, Raj Kumar

doi:10.1039/d2nj05066h

Cited by 9 publications

(2 citation statements)

References 55 publications

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“…The assembled NiCo(O)S//Fe 2 O 3 asymmetric supercapacitor outperforms a series of Fe 2 O 3 -based supercapacitors and can preserve 80.2% capacitance after 7000 cycles at 5 A•g −1 (Figure 4b,c). Red mud [69] and ground-granulated blast furnace slag [70] also show high potential as precursors of Fe 2 O 3 to construct supercapacitors. Nickel bicarbonate is another widely used electrode for supercapacitors.…”

Section: Metal (Hydr)oxide Materialsmentioning

confidence: 99%

Repurposing Mining and Metallurgical Waste as Electroactive Materials for Advanced Energy Applications: Advances and Perspectives

Guo,

Chen,

Liu

et al. 2023

Catalysts

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Developing cost-effective electroactive materials for advanced energy devices is vital for the sustainable development of electrochemical energy conversion/storage systems. To reduce the fabrication cost of electroactive materials (electrocatalysts and electrodes), growing attention has been paid to low-cost precursors. Recently, mining and metallurgical waste has been used to design electroactive materials, which shows great economic and environmental benefits. Herein, current achievements in the applications of mining and metallurgical waste-derived electroactive materials in sustainable energy conversion/storage fields (batteries, supercapacitors, fuel cells, and small-molecule electro-conversion) are comprehensively analyzed. The waste-to-materials conversion methods and materials’ structure–performance relationships are emphasized. In addition, perspectives related to the further development and applications of waste-derived high-performance electroactive materials are pointed out.

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Section: Metal (Hydr)oxide Materialsmentioning

confidence: 99%

Repurposing Mining and Metallurgical Waste as Electroactive Materials for Advanced Energy Applications: Advances and Perspectives

Guo,

Chen,

Liu

et al. 2023

Catalysts

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show abstract

“…These materials can be metal oxides such as FeO [5], NiO [6], Al2O3 [7], SiO2 [8],etc. or including conducting polymers (CPs) like polyaniline (PANI) [10], polypyrrole (PPy) [9], etc., but, these materials suffer from stability issues and tend to degrade after a limited cycles of charging and discharging process. Considering these two aspects of supercapacitor mechanisms, it can be inferred that the preparation of composite materials is necessary to overcome these limitations and improve the electrochemical activities of supercapacitor electrodes [11].…”

Section: Introductionmentioning

confidence: 99%

The Role of Cobalt Ferrites Nanoparticles on Structural and Electrochmical Properties of Mesoporous Silica for Supercapacitor Applications

Salama,

Alshammari,

Nafady

et al. 2023

Preprint

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The research focus in energy storage applications has shifted towards mesoporous silica (MCM-41) material due to its distinct surface, chemical, and electronic properties. However, the electrodes made from mesoporous silica in supercapacitors are unable to meet the growing request for high energy density in electronic devices. To address this limitation, researchers have explored modifying the material with metal oxides, heteroatoms, and conductive polymers, which can provide pseudo-capacitance during charging and discharging processes, thereby enhancing energy density. Among the various materials investigated, ferrite materials, particularly cobalt ferrites (COF), have shown promising electrochemical properties. Nevertheless, their low internal conductivity hinders their usage in supercapacitor applications. Consequently, combining ferrites with MCM-41 has been proposed as a means to enhance the electrochemical behavior. In this study, various contents of COF were loaded on MCM-41. Different characterization methods were used to study the physical and surface properties of the as synthesized materials like XRD, FTIR, SEM, TEM, EDX and SEM-mapping. TEM images confirmed that all the as-synthesized composites retained the mesoporous structure, and the particle size of ferrites ranged from 8 to 14 nm. The cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) techniques were employed to investigate the electrochemical characteristics of the composite materials in H2SO4 electrolyte solution (1.0 M) and a potential window ranging from 0.0 to 0.8 V. The results demonstrated that the incorporation of ferrites onto MCM-41 led to an elevation in specific capacitance, with the highest value (746 F.g-1) observed at 35 COF-MCM-41 composite. However, further increasing the content of ferrites resulted in a decrease in specific capacitance. Furthermore, the prepared composites exhibited excellent cycling stability even after 5000 cycles, with MCM-41, COF, and 35 COF-MCM-41 retaining 84.4%, 89.4%, and 94.8% of their initial specific capacitance, respectively. These findings highlight the significant role played by the dispersion of cobalt ferrite nanoparticles in enhancing pseudocapacitance behavior, thus improving the overall electrochemical performance of the composites.

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The Role of Cobalt Ferrites Nanoparticles on Structural and Electrochemical Properties of Mesoporous Silica for Supercapacitor Applications

Salama,

Alshammari,

Nafady

et al. 2024

J Inorg Organomet Polym

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Cost-effective akermanite derived from industrial waste for working electrodes in supercapacitor applications

Abstract: The aim of this study is the synthesis of an akermanite (Ca2MgSi2O7) material by sol–gel method using industrial waste (fly ash (FA) and ground-granulated blast furnace slag (GGBS)) as an initial precursor for the first time.

Cited by 9 publications

References 55 publications

Repurposing Mining and Metallurgical Waste as Electroactive Materials for Advanced Energy Applications: Advances and Perspectives

Repurposing Mining and Metallurgical Waste as Electroactive Materials for Advanced Energy Applications: Advances and Perspectives

The Role of Cobalt Ferrites Nanoparticles on Structural and Electrochmical Properties of Mesoporous Silica for Supercapacitor Applications

The Role of Cobalt Ferrites Nanoparticles on Structural and Electrochemical Properties of Mesoporous Silica for Supercapacitor Applications

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