Influence of Binary Oxidant (FeCl&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt;:APS) Ratio on the Spectroscopic and Microscopic Properties of Poly(2,5-Dimethoxyaniline)

Singh, Rajiv Kumar; Agarwal, Khushboo; Dwivedi, Deepshikha; Sood, Keadar N.; Singh, R. N.

doi:10.4236/ojpchem.2012.23014

Cited by 11 publications

(7 citation statements)

References 33 publications

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“…These properties are responsible for intermolecular transport of the ionic species alongside the polymer chain and a little intermolecular hopping owing to close and better packing of the material. Consequently, this high crystallinity of the material leads to high conductivity and high electrocatalytic activity [36,37]. Literature study reveals that by using commercial phytic acid solution as a dopant, the similar behaviour of XRD pattern is obtained with low crystallinity as for other reported organic and inorganic acids doped PANI.…”

Section: Structural and Morphological Characterizationmentioning

confidence: 81%

Exploring the Functional Properties of Sodium Phytate Doped Polyaniline Nanofibers Modified FTO Electrodes for High-Performance Binder Free Symmetric Supercapacitors

et al. 2021

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The performance of high-rate supercapacitors requires fine morphological and electrical properties of the electrode. Polyaniline (PANI), as one of the most promising materials for energy storage, shows different behaviour on different substrates. The present study reports on the surface modification of fluorine doped tin oxide (FTO) with the sodium phytate doped PANI without any binder and its utilization as a novel current collector in symmetric supercapacitor devices. The electrochemical behaviour of the sodium phytate doped PANI thin film with and without a binder on fluorine doped tin oxide (FTO) as current collector was investigated by cyclic voltammetry (CV). The electrode without a binder showed higher electrocatalytic efficiency. A symmetrical cell configuration was therefore constructed with the binder-free electrodes. The device showed excellent electrochemical performance with high specific capacities of 550 Fg−1 at 1 Ag−1 and 355 Fg−1 at 40 Ag−1 calculated from galvanostatic discharge curves. The low charge transfer and solution resistances (RCT and RS) of 7.86 Ωcm² and 3.58 × 10−1 Ωcm², respectively, and superior rate capability of 66.9% over a wide current density range of 1 Ag−1 to 40 Ag−1 and excellent cycling stability with 90% of the original capacity over 1000 charge/discharge cycles at 40 Ag−1, indicated it to be an efficient energy storage device. Moreover, the gravimetric energy and power density of the supercapacitor was remarkably high, providing 73.8 Whkg−1 at 500 Wkg−1, respectively. The gravimetric energy density remained stable as the power density increased. It even reached up to 49.4 Whkg−1 at a power density of up to 20 Wkg−1.

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Section: Structural and Morphological Characterizationmentioning

confidence: 81%

Exploring the Functional Properties of Sodium Phytate Doped Polyaniline Nanofibers Modified FTO Electrodes for High-Performance Binder Free Symmetric Supercapacitors

et al. 2021

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“…16 The type of oxidant is a factor that most significantly affects the conductive polymer characteristics. 11,19,20 The oxidation-reduction potential of the oxidant influences the rate of polymerization, conductivity and surface morphology of polypyrrole. 21 The oxidants typically used for polypyrrole polymerization are ammonium persulfate (APS) and ferric chloride (FeCl 3 ).…”

mentioning

confidence: 99%

“…As such, binary oxidants are attracting attention in terms of addressing problems caused by single oxidants. Singh et al 20 used FeCl 3 and APS to examine the effects of binary oxidants on the appearance and electrical characteristics of poly(2,5-dimethoxyaniline) (PDMA) films. As a result, they confirmed that the benzenoid structure of PDMA was better aligned as the APS content increased, thereby increasing the crystallinity degree of polymers and improving conductivity.…”

mentioning

confidence: 99%

Conductivity, superhydrophobicity and mechanical properties of cotton fabric treated with polypyrrole by in-situ polymerization using the binary oxidants ammonium Peroxodisulfate and ferric chloride

Lee

Park

2018

Textile Research Journal

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In this study, polypyrrole deposition and a superhydrophobic coating were applied to cotton fabrics to develop a self-cleaning and conductive fabric with electric heating performance. The binary oxidants ammonium peroxodisulfate and ferric chloride were introduced during the polymerization to adjust the size of the polypyrrole particles for creating diverse nano-scale roughness on the surface of the cotton fabrics and to prevent degradation in the mechanical properties of textiles. The in-situ polymerization of polypyrrole that introduced the binary oxidants succeeded in depositing polypyrrole particles on the surface of the cotton fabrics. Binary oxidants formed small polypyrrole particles contrary to the single oxidants. In terms of conductivity, the surface resistivity decreased as the FeCl3 ratio in the oxidants increased. The binary oxidants led to a similar level of conductivity even though the amount of polypyrrole deposition was less than that in the case of the single oxidant. The electrical heating performance improved as the surface resistance was decreased, resulting in an up to 20℃ increase in the surface temperature. On the other hand, the duration of the electro-heating effect was shorter with higher surface temperature. In terms of wettability, a superhydrophobicity with a contact angle of 150° or higher and a shedding angle of less than 10° was achieved under all oxidant conditions because of the nano-scale roughness caused by polypyrrole. Polypyrrole deposition reduced the tensile strength of the cotton fabric and increased its stiffness. The binary oxidants exhibited smaller changes in the mechanical properties of the textile than the single oxidants.

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“…The mean particle size of CdS was calculated using scherr equation and found to be 19.57nm. The increase of crystallinity may be due to the replication of Benzenoid and Quinoid rings in PDMA [11]…”

Section: B Synthesis Of Poly (2 5-dimethoxyaniline)mentioning

confidence: 99%

“…The blend films have an absorption bands around 330nm is attributed to the π -π* transition of the benzenoid ring [11].…”

Section: Uv -Vis Spectra Analysismentioning

confidence: 99%

Camphor Sulfonic acid Protonated Poly (2, 5-dimethoxyaniline) - Cadmium sulfide blend thin film for Ammonia gas Sensing Application

Dayana¹,

Rayar²

2019

IJITEE

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Poly (2, 5-dimethoxyaniline) and Cadmium sulfide nanocomposite blend have been prepared by low cost, feasible oxidative polymerization method. Poly (2, 5-dimethoxyaniline) has been protonated with Camphor sulfonic acid. nanocomposite blend thin films were obtained by blending with CdS into Poly (2, 5-dimethoxyaniline) for different weight percentage by dip coating. The structural, morphological, optical characterizations of pristine Poly (2, 5-dimethoxyaniline) and nanocomposite blend thin films were analyzed. The XRD pattern shows that the crystallinity of the blend film increases with increasing CdS concentration. FESEM images shows porous blend film. The UV-Vis and Photoluminence spectra analysis shows the extension of conjugation length with decreasing band gap with increasing CdS concentration. The presence of functional groups were studied from FTIR spectra. The CSA protonated Poly (2, 5-dimethoxyaniline) – Cadmium sulfide blend films have been investigated as ammonia gas.

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Influence of Binary Oxidant (FeCl<sub>3</sub>:APS) Ratio on the Spectroscopic and Microscopic Properties of Poly(2,5-Dimethoxyaniline)

Cited by 11 publications

References 33 publications

Exploring the Functional Properties of Sodium Phytate Doped Polyaniline Nanofibers Modified FTO Electrodes for High-Performance Binder Free Symmetric Supercapacitors

Exploring the Functional Properties of Sodium Phytate Doped Polyaniline Nanofibers Modified FTO Electrodes for High-Performance Binder Free Symmetric Supercapacitors

Conductivity, superhydrophobicity and mechanical properties of cotton fabric treated with polypyrrole by in-situ polymerization using the binary oxidants ammonium Peroxodisulfate and ferric chloride

Camphor Sulfonic acid Protonated Poly (2, 5-dimethoxyaniline) - Cadmium sulfide blend thin film for Ammonia gas Sensing Application

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