The role of functionalised multiwalled carbon nanotubes based supercapacitor for arsenic removal and desalination of sea water

Mishra, Ashish Kumar; Ramaprabhu, Sundara

doi:10.1080/17458080.2010.509872

Cited by 13 publications

(1 citation statement)

References 34 publications

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“…This structure has a high dielectric constant and low dielectric loss emphasizing the appearance of negative dielectric constant and dielectric loss tangent at both high and low frequencies, in contrast to what is preserved as the appearance of a negative value only at high or low frequencies [29,30]. The main aim of this study is to fine-tune the dielectric constant and dielectric loss tangent so that high-energy storage such as supercapacitors and electronic devices as diodes can be manufactured [31][32][33][34][35]. The structure of Polypyrrole-MWCNTs composite/TiO 2 /Al 2 O 3 /n-Si has been fully characterized by X-ray diffraction pattern, FTIR, Raman spectroscopy, and scanning electron microscope.…”

Section: Introductionmentioning

confidence: 99%

Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO₂/Al₂O₃/n-Si

Ashery

Gaballah

Ahmed

2021

Journal of Experimental Nanoscience

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The paper presents structural and dielectric properties of Polypyrrole-MWCNTs/TiO 2 /Al 2 O 3 /n-Si emphasizing that one of the superior characteristics is the appearance of negative dielectric constant and dielectric loss tangent at both high and low frequencies. It may worth mentioning that the need to develop electronic devices based on new materials combination has motivated the development of such structures as supercapacitors and diodes. The structural characterization of PPy-MWCNTs/TiO 2 / Al 2 O 3 /n-Si was investigated using X-ray diffraction, FTIR, Raman spectroscopy, and scanning electron microscope. The oxide film thickness (d ox ), the density of state (N SS ), admittance (Y m ), electric field (E m ), depletion layer width (W d ), and DUb (eV) were examined using the C À2 À V relationship. At low frequencies, the values of W d , U b increase, however as frequency rises, the W d , N ss , and R s decrease. The dielectric constant (E) takes only negative values at a high frequency of 2x10 7 Hz, whereas it takes both negative and positive values at frequencies of 10 7 , 100, and 10 Hz. The dielectric loss tangent (tand) has positive and negative values at frequencies 10 7 , 10 6 , 100, and 10 Hz.

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Section: Introductionmentioning

confidence: 99%

Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO₂/Al₂O₃/n-Si

Ashery

Gaballah

Ahmed

2021

Journal of Experimental Nanoscience

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Multiwalled carbon nanotubes grown over green iron nanocatalyst as electrode for hydrogen-producing electrochemical cell

Mishra

Jaiswal

Mishra

2021

J Mater Sci: Mater Electron

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Removal, recovery and enrichment of metals from aqueous solutions using carbon nanotubes

Zhao

et al. 2013

J Radioanal Nucl Chem

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The role of functionalised multiwalled carbon nanotubes based supercapacitor for arsenic removal and desalination of sea water

Cited by 13 publications

References 34 publications

Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO₂/Al₂O₃/n-Si

Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO₂/Al₂O₃/n-Si

Multiwalled carbon nanotubes grown over green iron nanocatalyst as electrode for hydrogen-producing electrochemical cell

Removal, recovery and enrichment of metals from aqueous solutions using carbon nanotubes

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The role of functionalised multiwalled carbon nanotubes based supercapacitor for arsenic removal and desalination of sea water

Cited by 13 publications

References 34 publications

Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO2/Al2O3/n-Si

Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO2/Al2O3/n-Si

Multiwalled carbon nanotubes grown over green iron nanocatalyst as electrode for hydrogen-producing electrochemical cell

Removal, recovery and enrichment of metals from aqueous solutions using carbon nanotubes

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Product

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Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO₂/Al₂O₃/n-Si

Tuned high dielectric constant, low dielectric loss tangent with positive and negative values for PPy/MWCNTs/TiO₂/Al₂O₃/n-Si