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Microwave synthesis of magnesium phosphate-rGO as an effective electrode for supercapacitor application

  • S. Mohammed Eliyas , Rathinam Yuvakkumar ORCID logo EMAIL logo , Ganesan Ravi EMAIL logo and S. Arun Metha
Published/Copyright: May 13, 2024
Zeitschrift für Physikalische Chemie
From the journal Zeitschrift für Physikalische Chemie Volume 239 Issue 2-3

Abstract

Transition metal phosphate based materials is being used for energy storage because of P–O covalent bond which facilitates more storage compared to other transition metals and this covalent bond enhanced the electrochemical performance for supercapacitor applications. Pure magnesium phosphate (Mg3(PO4)2) were synthesized via microwave synthesis as the composite varies with rGO (MgPO-XrGO)X=25,50,75,100mg. The prepared composite materials were examined employing XRD, Raman, FT-IR, SEM and XPS studies. Electrochemical studies (CV, EIS, GCD) of three electrode system for the prepared electrodes were performed using Biologic SP-150 with 2M (H2SO4) as electrolyte. From the XRD results, triclinic structured MgPO was confirmed (JCPDS card #35–0329) and rGO has enhanced the crystallinity of MgPO composite. From Raman analyses, the well graphitization nature of rGO in composite MgPO was identified and from XPS analysis chemical composition of the elements was analyzed. The FT-IR fundamental modes of vibrations of PO 4 3 − (γ1,γ3,γ4) were obtained. The electrochemical analysis of the prepared material such as pure and composite materials showed better performance. The high specific capacitance was obtained for MgPO-50rGO because MgPO has high coordination with rGO. As Mg2+ oxidation state has high chemical reactivity compared to other earth metals and other advantage is P–O covalent bond that enhanced the performance of the electrode. By facilitating these advantages, rGO is included as composite to develop the electrode to favor the practical applications. By using the optimum level rGO composite with MgPO4-50rGO a better new candidate was successfully developed for supercapacitor applications. The fabricated MgPO-50rGO//Activate carbon full cell set up exhibited the specific capacitance 61 Fg−1 at 1 Ag−1, 21.7 Wh kg−1 energy density and 790.0 W kg−1 power densities and explored outstanding capacitive retention in 2 electrode full cell setup cyclic stability of 99.1 % over the 5000 cycles.

Keywords: magnesium phosphate; covalent bond; graphene; microwave; supercapacitor; full cell setup
Corresponding author: Rathinam Yuvakkumar, Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India, E-mail: ; and Ganesan Ravi, Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India; and Department of Physics, Chandigarh University, Mohali 140 413, Punjab, India, E-mail:

Funding source: UGC-SAP, DST-FIST, DST-PURSE and RUSA grants

  1. Research ethics: Not applicable.

  2. Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: The authors states no conflict of interest.

  4. Research funding: This work was supported by UGC-SAP, DST-FIST, DST-PURSE and RUSA grants.

  5. Data availability: Not applicable.

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Received: 2023-11-29
Accepted: 2024-03-01
Published Online: 2024-05-13
Published in Print: 2025-02-25

© 2024 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Contributions to “Materials for solar water splitting”
  3. Synergistic enhancement of electrochemical supercapacitor efficiency via Co3O4/GO composite electrode
  4. Impact of annealing temperature on the structural, morphological and optical properties of Ni doped ZnO nanostructured thin films synthesized by sol–gel methodology
  5. Comparison of different iron oxides for degradation of tetracycline anti-bacterial drug
  6. Structural and electrical properties of mol% (100 − x)Li2SO4:xP2O5 solid electrolyte system (0 ≤ x ≤ 20)
  7. Microwave synthesis of magnesium phosphate-rGO as an effective electrode for supercapacitor application
  8. Adsorptive removal of Cu(II) ions from aqueous solution using Teff (Eragrostis tef) hay based magnetized biocarbon: RSM-GA, ANN based optimization and kinetics aspects
  9. Efficiency assessment of hydrothermally synthesized Mn2+/3+ modified LaCoO3 nanoparticles for advanced wastewater remediation
  10. Synthesis of BaO/NiO/rGO nanocomposite for supercapacitor application
  11. Ethanedithiol-modified silica nanoparticles for selective removal of Hg2+ ions from aqueous wastewater
  12. Effect of Zr substitution on photocatalytic and magnetic properties of lanthanum titanate
  13. Investigations on the microbial activity and anti-corrosive efficiency of nickel oxide nanoparticles synthesised through green route
  14. Multifunctional application of different iron oxide nanoparticles
  15. Effect of pH in the bismuth vanadate nanorods for their supercapacitor applications
  16. Maximizing biogas production from leftover injera: influence of yeast addition to anaerobic digestion system
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https://doi.org/10.1515/zpch-2023-0492
Keywords for this article
magnesium phosphate; covalent bond; graphene; microwave; supercapacitor; full cell setup

Articles in the same Issue

  1. Frontmatter
  2. Contributions to “Materials for solar water splitting”
  3. Synergistic enhancement of electrochemical supercapacitor efficiency via Co3O4/GO composite electrode
  4. Impact of annealing temperature on the structural, morphological and optical properties of Ni doped ZnO nanostructured thin films synthesized by sol–gel methodology
  5. Comparison of different iron oxides for degradation of tetracycline anti-bacterial drug
  6. Structural and electrical properties of mol% (100 − x)Li2SO4:xP2O5 solid electrolyte system (0 ≤ x ≤ 20)
  7. Microwave synthesis of magnesium phosphate-rGO as an effective electrode for supercapacitor application
  8. Adsorptive removal of Cu(II) ions from aqueous solution using Teff (Eragrostis tef) hay based magnetized biocarbon: RSM-GA, ANN based optimization and kinetics aspects
  9. Efficiency assessment of hydrothermally synthesized Mn2+/3+ modified LaCoO3 nanoparticles for advanced wastewater remediation
  10. Synthesis of BaO/NiO/rGO nanocomposite for supercapacitor application
  11. Ethanedithiol-modified silica nanoparticles for selective removal of Hg2+ ions from aqueous wastewater
  12. Effect of Zr substitution on photocatalytic and magnetic properties of lanthanum titanate
  13. Investigations on the microbial activity and anti-corrosive efficiency of nickel oxide nanoparticles synthesised through green route
  14. Multifunctional application of different iron oxide nanoparticles
  15. Effect of pH in the bismuth vanadate nanorods for their supercapacitor applications
  16. Maximizing biogas production from leftover injera: influence of yeast addition to anaerobic digestion system
  17. Synthesis, characterization and efficient photo-catalytic performance of methylene blue by Zn doped SnO2 nanoparticles
  18. Enhancing performance: insights into the augmentation potential of acrylonitrile butadiene styrene/boron nitride composites
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