Synthesis of polyaniline/MWCNTs by interfacial polymerization for superior hybrid supercapacitance performance

Prasanna, B.P.; Avadhani, D.N.; Chaitra, K.; Nagaraju, N.; Nagaraju, Kathyayini

doi:10.1007/s10965-018-1526-2

Cited by 30 publications

(10 citation statements)

References 39 publications

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“…Meanwhile, the vibrations observed in the wavenumber of 825 cm -1 shows the C-H vibrations. These results seem similar to the results of previous studies that detected C-H vibrations at wavenumbers of 812 cm -1 [26]. The functional group of N = Q = N is detected at a wavenumber of 1184 cm -1 , where Q is a quinoid [27] which, at a wavenumber of 1336 cm -1 , is the vibration of C-N.…”

Section: Resultssupporting

confidence: 91%

Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Taufiq

Sutiami

Subadra

et al. 2020

IJE

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In this work, the Fe3O4 nanoparticles from natural iron sand were combined with active carbon (AC) and polyaniline (PANI) to obtain Fe3O4/AC/PANI nanocomposites with mass variations of the AC of 0.1, 0.2, 0.3, 0.4, and 0.5 g. The crystalline phase of Fe3O4/AC/PANI nanocomposites formed from Fe3O4 with PANI having an amorphous phase. Meanwhile, the crystalline phase of AC was unmatched because of its very small composition. The presence of AC was observed through vibrations from the CC and COOH functional groups. The existence of PANI was indicated by the vibrations of the benzoic ring and quinonoid bonds. Besides, the presence of Fe3O4 was confirmed by the presence of Fe-O functional groups from octahedral and tetrahedral positions. The optical properties of Fe3O4/AC/PANI nanocomposites were shown by increasing the energy gap along with decreasing absorption wavelength. Interestingly, increasing AC composition made the absorption bandwidth of the Fe3O4/AC/PANI nanocomposites wider, so that the radar absorption also increased marking by the greater reflection loss that reached-15.8 dB. The increase in the radar absorption performance of Fe3O4/AC/PANI nanocomposites came from the efficient complementarity between dielectric loss and magnetic loss and interfacial polarization between Fe3O4-AC or between Fe3O4-PANI.

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Section: Resultssupporting

confidence: 91%

Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Taufiq

Sutiami

Subadra

et al. 2020

IJE

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“…This suggests that the systems have low internal resistances; so, during the CD process less energy is wasted which truncate the generation of unwanted heat. 17,18 In case of all the PANI samples, the charging-discharging curves are almost symmetric. But they show different specific capacitances, which could be attributed to the presence of oligomers due to incomplete polymerization at inappropriate ratio of APS:aniline or aniline:PTSA.…”

Section: Electrochemical Characterizationsmentioning

confidence: 92%

Optimization of the ratio of aniline, ammonium persulfate, para ‐toluenesulfonic acid for the synthesis of conducting polyaniline and its use in energy storage devices

Das

Pandey

Verma

et al. 2022

Intl J of Energy Research

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We have successfully synthesized para-toluenesulfonic acid (PTSA)-based conducting polyaniline (PA) by using ammonium persulfate (APS) as oxidant for supercapacitor electrode applications. The primary aim is to find out the optimized ratio of APS:aniline and aniline:PTSA based on the electrochemical performances of the fabricated electrodes. PA having APS:aniline ratio of 1.25:1 and aniline:PTSA ratio of 2:1 exhibited the highest value of specific capacitance, specific energy, specific power, and coulombic efficiency of 82.22 F/g, 11.42 Wh/kg, 124.99 W/kg, and 95.95%, respectively. It offers very low charge transfer resistance of 3.1 Ω during the electrochemical processes. The cycle life of the corresponding system is the largest among all, which is 88.97% retention after 2000 cycles. The robust electrochemical behavior may be due to the uniform rod-shaped morphology of the corresponding system, which may be providing seamless movement of the electrolyte ions to the electrochemical active sites along with proper electrical connection.

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“…Spectroscopic bands at 1563 and 1467 cm -1 signify vibrational stretching of C=C based quinoid and benzenoid ring, respectively. 35,36 C=NH + is present at around 2346 cm -1. 32 The functional groups of acetylene black are found at 1561cm -1 (C-C) and 3450 cm -1 (O-H).…”

Section: Identification Of Functional Groupsmentioning

confidence: 99%

Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

Das

Verma

2019

Int J Energy Res

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A new system based on Polyaniline-Acetylene black-Copper cobaltite composite has been prepared and affirmed by XRD, UV, SEM, FTIR, and EDS characterizations. The rod-like texture of ternary hybrid system offered excellent electrochemical activity in comparison to single and binary systems. CV and CD results revealed outstanding redox behavior of the ternary hybrid electrodes. Ternary electrode (PACC) presented the highest specific capacitance value of 690 F/g at 1 mA/cm 2 current density. PACC electrode based symmetric supercapacitor had a specific capacitance of 137.25 Fg -1 at 1 mA/cm 2 of current density. PACC symmetric supercapacitor had the highest specific power and specific energy of 3308.85 W.kg -1 and 19.064 Wh.kg -1 , respectively. The ternary system provides less charge transfer resistance values compared to all other systems. Thermal stability of the ternary composite is way better than polyaniline, which is due to the contribution of copper cobaltite and acetylene black. The overwhelming characteristics of the ternary hybrid composite bring it to the limelight as an excellent candidate in the field of supercapacitors.

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Synthesis of polyaniline/MWCNTs by interfacial polymerization for superior hybrid supercapacitance performance

Cited by 30 publications

References 39 publications

Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Optimization of the ratio of aniline, ammonium persulfate, para ‐toluenesulfonic acid for the synthesis of conducting polyaniline and its use in energy storage devices

Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

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