Hydrothermally Synthesized Zinc Vanadate Rods for Electrochemical Supercapacitance Analysis in Various Aqueous Electrolytes

Suganya, B.; Chandrasekaran, J.; Maruthamuthu, S.; Saravanakumar, B.; Vijayakumar, E.

doi:10.1007/s10904-020-01581-y

Cited by 21 publications

(7 citation statements)

References 51 publications

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“…Consequently, with increasing scan rates, the redox peak intensifies [47]. Interestingly, the desolvation process is facilitated by the lower density of charge K + alkali ions, resulting in a slight deviation from ideal capacitive behavior in the CV curves of both electrodes.…”

Section: Electrochemical Analysismentioning

confidence: 98%

Exploring Zinc Vanadate/Cobalt Oxide (Zn3(VO4)2/CoO) Nano Hybrid Composites as Supercapacitors for Sustainable Energy Storage Applications

Sivakumar,

Chandrasekar

et al. 2024

Int. Res. J. multidiscip. Technovation

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A hybrid nanocomposite of zinc vanadate/cobalt oxide (Zn3(VO4)2/CoO at ratios of 90/10, 80/20, 50/50, and 20/80) was obtained using a simple co-precipitation technique, then calcinated for 4 hrs at 400°C. The surface morphological, vibrational, and structural characteristics of the synthesized hybrid nanocomposites were examined. According to the structural study, orthorhombic Zn3(VO4)2 and cubic crystal systems of CoO with space groups Fm-3m were formed. The functional groups of Zinc Vanadate/Cobalt Oxide were examined using FTIR spectroscopy. A scanning electron microscopy (SEM) study reveals the nanosheets structures with the size of 200 nm. The chemical composition and formation of the Zn3(VO4)2/CoO composites were confirmed using X-ray photoelectron spectroscopy (XPS). The electrochemical performance of the hybrid nanocomposites was assessed through CV, GCD and impedance analysis. Among the nanocomposites, Zn3(VO4)2/CoO 80/20 exhibited a high specific capacitance value of 564.36 Fg-1 and retaining 97% of their total capacitance even after 3000 cycles.

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Section: Electrochemical Analysismentioning

confidence: 98%

Exploring Zinc Vanadate/Cobalt Oxide (Zn3(VO4)2/CoO) Nano Hybrid Composites as Supercapacitors for Sustainable Energy Storage Applications

Sivakumar,

Chandrasekar

et al. 2024

Int. Res. J. multidiscip. Technovation

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“…The higher SSA along with the electrochemical performances including maximum specific capacitance, high power density, and energy density, good capacitive retention after 3000 cycling Zn 3 V 2 O 8 @MWCNT 0.5 M K 2 SO 4 241@2 A g À 1 79 % (5000) [17] ZNV 8H 300 3 M KOH 384@1 A g À 1 87 % (2000) [43] Zn 3 V 2 O 8 0.5 M K 2 SO 4 213@1 A g À 1 77 % (1000) [44] Zn 3 V 2 O 8 @graphene (GVZ) 0.5 M K 2 SO 4 361@2 A g À 1 73 % (5000) [45] Zn 3 V 2 O 8 -Ag@C 2 M KOH 380.1@3 mA cm À 2 89.9 % (3000) This work stability, and low R ct regarding the Zn 3 V 2 O 8 , Zn 3 V 2 O 8 À Ag, Zn 3 V 2 O 8 @C, and Zn 3 V 2 O 8 À Ag@C materials are depicted in Figure 8 as a form of Radar chart. The Zn 3 V 2 O 8 À Ag@C exhibits overall better performance in contrast to the other samples.…”

Section: Electrochemical Analysismentioning

confidence: 99%

Green and Facile Synthesis of Zn₃V₂O₈−Ag@C Composite as an Efficient Electrode for Supercapacitor Application

Mane,

Bhoj,

Moholkar

et al. 2024

ChemistrySelect

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The present study demonstrates the synthesis of ternary composites of zinc vanadate (Zn3V2O8) with silver (Ag) and carbon matrix originated from the Bengal gram bean extract (BGBE) using a facile, economic, and environmentally sustainable rotational chemical bath deposition (R−CBD) method. From the electrochemical studies, it is found that the Zn3V2O8−Ag@C demonstrated improved electrochemical performance with the specific capacitance (Csp) of 380.1 F g−1, energy density (ED) of 52.7 Wh kg−1, with power density (PD) of 882.3 W kg−1 at 3 mA cm−2 current density and good capacitive retention of 89.8 % over 3000 charge–discharge (GCD) cycles, which is remarkably higher than the other electrode materials (Zn3V2O8, Zn3V2O8−Ag, Zn3V2O8@C). The combined merits of conductive silver (Ag) nanoparticle and carbonaceous material from BGBE assist in enhancing the overall electrochemical performance of Zn3V2O8−Ag@C. The Zn3V2O8−Ag@C nanocomposite was used as electrode material for the fabrication of a flexible symmetric solid–state supercapacitor device (SSC). The SSC device delivered a Csp of 69.17 F g−1 with an energy density (ED) of 13.8 Wh kg−1 at a 2 mA cm−2 current density. Moreover, the SSC shows a 90 % capacitive retention over the continuous GCD cycles.

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“…36 Zinc pyrovanadate Zn 3 V 2 O 7 (OH) 2 •2H 2 O as a new kind of vanadate mineral, has also been widely studied and applied in catalyst, cathode and electroplating materials due to its excellent photocatalytic performance, performance in lithium batteries, low cost and easy availability. 37,38 However, its peroxidase-like activity has not been studied. Zn 3 V 2 O 7 (OH) 2 •2H 2 O has a layered sandwich-like crystal structure composed of Zn octahedron and V-O tetrahedron layers (Fig.…”

Section: Introductionmentioning

confidence: 99%

Zinc pyrovanadate nanorods with excellent peroxidase-like activity at physiological pH for the colorimetric assay of H₂O₂ and epinephrine

Liu

Hao

Liu

et al. 2023

Analyst

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Hydrothermally Synthesized Zinc Vanadate Rods for Electrochemical Supercapacitance Analysis in Various Aqueous Electrolytes

Cited by 21 publications

References 51 publications

Exploring Zinc Vanadate/Cobalt Oxide (Zn3(VO4)2/CoO) Nano Hybrid Composites as Supercapacitors for Sustainable Energy Storage Applications

Exploring Zinc Vanadate/Cobalt Oxide (Zn3(VO4)2/CoO) Nano Hybrid Composites as Supercapacitors for Sustainable Energy Storage Applications

Green and Facile Synthesis of Zn₃V₂O₈−Ag@C Composite as an Efficient Electrode for Supercapacitor Application

Zinc pyrovanadate nanorods with excellent peroxidase-like activity at physiological pH for the colorimetric assay of H₂O₂ and epinephrine

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Hydrothermally Synthesized Zinc Vanadate Rods for Electrochemical Supercapacitance Analysis in Various Aqueous Electrolytes

Cited by 21 publications

References 51 publications

Exploring Zinc Vanadate/Cobalt Oxide (Zn3(VO4)2/CoO) Nano Hybrid Composites as Supercapacitors for Sustainable Energy Storage Applications

Exploring Zinc Vanadate/Cobalt Oxide (Zn3(VO4)2/CoO) Nano Hybrid Composites as Supercapacitors for Sustainable Energy Storage Applications

Green and Facile Synthesis of Zn3V2O8−Ag@C Composite as an Efficient Electrode for Supercapacitor Application

Zinc pyrovanadate nanorods with excellent peroxidase-like activity at physiological pH for the colorimetric assay of H2O2 and epinephrine

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Product

Resources

About

Green and Facile Synthesis of Zn₃V₂O₈−Ag@C Composite as an Efficient Electrode for Supercapacitor Application

Zinc pyrovanadate nanorods with excellent peroxidase-like activity at physiological pH for the colorimetric assay of H₂O₂ and epinephrine