Lower Band Gap Sb/ZnWO4/r-GO Nanocomposite Based Supercapacitor Electrodes

Brijesh, K.; Nagaraja, H.S.

doi:10.1007/s11664-019-07185-8

Cited by 29 publications

(5 citation statements)

References 62 publications

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“…FTIR spectra revealed diferent identities of nanoparticles as well as nanocomposite. In Figure 3 (a), (cellulose nanofber) peak at 800 cm −1 shows the presence of an aromatic compound [27], a broad absorption band at 3,333-3,400 cm −1 , which corresponds to hydroxyl group (-O-H stretching) vibrations in cellulose [28]. Another peak observed at 1,057 cm −1 may be due to skeletal vibration in -C-O-C and β-glycosidic at 897 cm −1 [29].…”

Section: Fourier Transform Infrared Analysismentioning

confidence: 99%

Biomolecule Protective and Photocatalytic Potential of Cellulose Supported MoS2/GO Nanocomposite

Pervaiz

Rehman

Ali

et al. 2023

Bioinorganic Chemistry and Applications

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In the current study, cellulose/MoS2/GO nanocomposite has been synthesized by a hydrothermal method. Reports published regarding efficiency of Mo and graphene oxide-based nanocomposites for environmental remediation motivated to synthesize cellulose supported MoS2/GO nanocomposite. Formation of nanocomposite was initially confirmed by UV-visible and FTIR spectroscopic techniques. Particle size and morphology of the nanocomposite were assessed by scanning electron microscopy (SEM), and it was found having particle size ranging from 50 to 80 nm and heterogeneous structure. The XRD analysis also confirmed the structure of the nanocomposite having cellulose, MoS2, and GO. The synthesized nanocomposite was further tested for biomolecule protective potential employing different radical scavenging assays. Results of radical DPPH● (50%) and ABTS●+ (51%) scavenging studies indicate that nanocomposites can be used as a biomolecule protective agent. In addition, nanocomposite was also evaluated for photocatalytic potential, and the results showed excellent photocatalytic properties for the degradation of 4-nitrophenol up to 75% and methylene blue and methyl orange up to 85% and 70%, respectively. So, this study confirmed that cellulose supported/stabilized MoS2/GO nanocomposite can be synthesized by an ecofriendly, cost-effective, and easy hydrothermal method having promising biomolecule protective and photocatalytic potential.

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Section: Fourier Transform Infrared Analysismentioning

confidence: 99%

Biomolecule Protective and Photocatalytic Potential of Cellulose Supported MoS2/GO Nanocomposite

Pervaiz

Rehman

Ali

et al. 2023

Bioinorganic Chemistry and Applications

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“…Also, it is analysed that the band gap of PANI 1.0 /AC 0.04 decreases to 3.75 eV in contrast to the band gap of PANI ~3.87 eV. This indicates that PANI 1.0 /AC 0.04 is highly conductive in nature 26 . The lower the band gap, the more easy it is for the electrons to transfer from the valance band to the conduction band.…”

Section: Resultsmentioning

confidence: 95%

Improved electrochemical performance of symmetric polyaniline/activated carbon hybrid for high supercapacitance: Comparison with indirect capacitance

Singh

Kumar

Husain

2021

Polymers for Advanced Techs

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Polyaniline (PANI) chains doped with very small amount of Activated Carbon (AC) as an electrode material in aqueous H2SO4 electrolyte was successfully employed in this work to enhance the electrochemical capacitive properties of PANI. The aim of this research is to improve overall specific capacitance of PANI by incorporating only minute amount of AC as a PANI dopant. There are many reports available on PANI/AC but the use of such a minute amount of AC in H2SO4 electrolyte which enhances the overall specific capacity of the composite has not been reported elsewhere. An improvement in the specific capacitance from 763.44 to 897.50 F g−1 in aqueous 0.1 M H2SO4 electrolyte solution is observed by adding mere 0.04 g of AC. It is envisaged that AC enhances SO4−2 ion transportation, forwards a stable and fast surface redox reactions, hence collectively improving the overall capacitive performance of supercapacitor electrode. The charge/discharge measurements shows that AC particles stops the PANI chains degradation during charge/discharge cycle. Also, the retention rate (54%) of PANI1.0/AC0.04 indicates approximately 11% more stability than pure PANI (43%) electrode alone. It was further observed that the electrochemical impedance parameters viz., that charge transfer resistance (Rct) (0.79 Ω), response frequency (0.26 Hz), response time (3.84 s) and knee frequency (9.16 Hz) of PANI1.0/AC0.04 electrode material shows excellent performance of the PANI doped AC. Considering its high specific capacitance, low‐cost and ease of synthesis, PANI1.0/AC0.04 seems to be a promising electrode material for next generation symmetric supercapacitors.

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“…It is seen that the absorption band of the La 2 O 3 –C 60 nanocomposite lies in the higher wavelength region, and the long tail is identified due to the interfacial contact of La 2 O 3 with C 60 , leading to a synergistic effect created. According to the Davis–Mott relation, the energy band gap ( E g ) of the synthesized materials was calculated from the UV-vis spectra using Tauc's equation: 54 αhν = A ( hν − E g ) n where α , h , and ν signifies the absorption coefficient, Planck's constant, and the incident photon's frequency, ‘ A ’ is the proportionality constant, and ‘ n ’ symbolizes as the power factor (having ½ value for indirect and 2 for direct transition). From Fig.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of fullerene-supported La₂O₃–C₆₀ nanocomposites: dual-functional materials for photocatalysis and supercapacitor electrodes

Munwar

Sardar

Mukhtar

et al. 2023

Phys. Chem. Chem. Phys.

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Lower Band Gap Sb/ZnWO4/r-GO Nanocomposite Based Supercapacitor Electrodes

Cited by 29 publications

References 62 publications

Biomolecule Protective and Photocatalytic Potential of Cellulose Supported MoS2/GO Nanocomposite

Biomolecule Protective and Photocatalytic Potential of Cellulose Supported MoS2/GO Nanocomposite

Improved electrochemical performance of symmetric polyaniline/activated carbon hybrid for high supercapacitance: Comparison with indirect capacitance

Fabrication of fullerene-supported La₂O₃–C₆₀ nanocomposites: dual-functional materials for photocatalysis and supercapacitor electrodes

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Lower Band Gap Sb/ZnWO4/r-GO Nanocomposite Based Supercapacitor Electrodes

Cited by 29 publications

References 62 publications

Biomolecule Protective and Photocatalytic Potential of Cellulose Supported MoS2/GO Nanocomposite

Biomolecule Protective and Photocatalytic Potential of Cellulose Supported MoS2/GO Nanocomposite

Improved electrochemical performance of symmetric polyaniline/activated carbon hybrid for high supercapacitance: Comparison with indirect capacitance

Fabrication of fullerene-supported La2O3–C60 nanocomposites: dual-functional materials for photocatalysis and supercapacitor electrodes

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Product

Resources

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Fabrication of fullerene-supported La₂O₃–C₆₀ nanocomposites: dual-functional materials for photocatalysis and supercapacitor electrodes