Nanofibers synthesis of ND:PANI composite by liquid/liquid interfacial polymerization and study on the effect of NDs on growth mechanism of nanofibers

Kumar, Vanish; Mahajan, Rashmi; Bhatnagar, Deepika; Kaur, Inderpreet

doi:10.1016/j.eurpolymj.2016.07.025

Cited by 22 publications

(15 citation statements)

References 33 publications

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“…This special nanostructured morphology is a result of the PANI polymerization confined in a 2D environment, which is represented by the interfacial region in which both viscous solutions interact. Special PANI morphologies due to particular processing conditions have already been observed and reported by others [11]. I-AFM was also useful in confirming that the observed needle-like structures in the SEM image have high electrical conductivity and thus are related to PANI.…”

Section: Morphology Of Hydrogels Containing Panisupporting

confidence: 79%

A facile and low-cost route for producing a flexible hydrogel–PANI electrolyte/counter electrode applicable in dye-sensitized solar cells (DSSC)

2019

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In this work, hybrid hydrogels were prepared based on poly(acrylic acid-co-acrylamide) hydrogels (Gel) and self-assembled nanostructured polyaniline (PANI). These hybrid hydrogels were prepared by in situ UV-assisted aniline polymerization during hydrogel network formation in a controlled interfacial reaction. They were then tested as flexible quasi-solid electrolytes with a counter electrode in dye-sensitized solar cells. This electrolyte-counter electrode system was prepared on top of a titanium dioxide layer deposited on a transparent and conductive anode electrode (ITO). Three different nanostructured Gel-PANI hybrid hydrogels were fabricated by employing different PANI concentrations and used for constructing electrolyte-counter electrode systems that displayed conductivities between 0.003 S/cm and 0.02 S/cm. Dye-sensitized solar cells (DSSC) that had the configuration ITO/TiO 2 /Gel-PANI/ITO were prepared and tested using natural dye extracted from Myrciaria cauliflora. The energy conversion efficiency was evaluated under AM1.5 (100 mW/ cm 2) light irradiation and was found to reach values above 2.0%. The device's energy conversion efficiency was found to be higher than those of others with the same natural dye. The process proved to be fast and facile, and it utilized an inexpensive natural dye.

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Section: Morphology Of Hydrogels Containing Panisupporting

confidence: 79%

A facile and low-cost route for producing a flexible hydrogel–PANI electrolyte/counter electrode applicable in dye-sensitized solar cells (DSSC)

2019

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“…On the other hand, PANI spectra showed two main contributions, the first at 1350 cm −1 corresponding to the stretching vibrational modes of the charged nitrogen segments, i.e., the C–N +. stretching vibrations of delocalized polaronic structures, and the second at 1570 cm −1 , corresponding to the C–C- stretching of B and Q and C=N [ 106 ], Figure 8 c,d. In the case of the electropolymerized PANI/MWCNTs composites obtained by CVD, it was observed that the Raman bands of the MWCNTs are overlapped with those of the PANI ( Figure 8 c).…”

Section: Resultsmentioning

confidence: 99%

CVD Conditions for MWCNTs Production and Their Effects on the Optical and Electrical Properties of PPy/MWCNTs, PANI/MWCNTs Nanocomposites by In Situ Electropolymerization

et al. 2021

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In this work, the optimal conditions of synthesizing and purifying carbon nanotubes (CNTs) from ferrocene were selected at the first stage, where decomposition time, argon fluxes, precursor amounts, decomposition temperature (at 1023 K and 1123 K), and purification process (HNO3 + H2SO4 or HCl + H2O2), were modulated through chemical vapor deposition (CVD) and compared to commercial CNTs. The processing temperature at 1123 K and the treatment with HCl + H2O2 were key parameters influencing the purity, crystallinity, stability, and optical/electrical properties of bamboo-like morphology CNTs. Selected multiwalled CNTs (MWCNTs), from 1 to 20 wt%, were electropolymerized through in-situ polarization with conductive polymers (CPs), poly(aniline) (PANI) and poly(pyrrole) (PPy), for obtaining composites. In terms of structural stability and electrical properties, MWCNTs obtained by CVD were found to be better than commercial ones for producing CPs composites. The CNTs addition in both polymeric matrixes was of 6.5 wt%. In both systems, crystallinity degree, related to the alignment of PC chains on MWCNTs surface, was improved. Electrical conductivity, in terms of the carrier density and mobility, was adequately enhanced with CVD CNTs, which were even better than the evaluated commercial CNTs. The findings of this study demonstrate that synergistic effects among the hydrogen bonds, stability, and conductivity are better in PANI/MWCNTs than in PPy/MWCNTs composites, which open a promissory route to prepare materials for different technological applications.

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“…The corresponding synthesis methods employed for the functionalized AuNPs were adopted from Turkevich, et al [14], Pannico, et al [15], Chai, et al [16] and Rastogi, et al [17], respectively. Synthesis of PANI and its composites was achieved by adopting and modifying the approach used by Kumar, Mahajan, Bhatnagar and Kaur [8]. We briefly describe all the adopted methodologies here.…”

Section: Methodsmentioning

confidence: 99%

“…We used chloroform as the organic phase and 1 M HCl as the aqueous phase. Before forming the interface, 7 µL of aniline (monomer for polyaniline) were dissolved in 10 mL of the organic phase [8]. Likewise, 2 mg of ammonium persulfate was added in 10 mL of 1 M HCl.…”

Section: Methodsmentioning

confidence: 99%

“…A number of methods have been employed to prepare PANI and its composites with AuNPs. Among them, interfacial polymerization has shown extraordinary potential, especially for the formation of conductive PANI-based products [8]. Generally, an amalgam of AuNPs with PANI displays a synergistic effect by yielding a composite material with enhanced electrochemical/electro-catalytic and sensing capabilities [9,10].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Approach for Effective Alteration of Morphological Features of Polyaniline through Interfacial Polymerization for Versatile Applications

et al. 2020

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Morphological characteristics of any nanomaterial are critical in defining its properties. In this context, a method to control morphological parameters of polyaniline (PANI) has been investigated by producing its composite with gold nanoparticles (AuNPs). Herein, we report for the first time the successful control on the physical/chemical properties of PANI composites synthesized via interfacial polymerization through functionalization of its AuNP composite component with citrate, ascorbate, glutathione (GSH), and cetyl trimethyl ammonium bromide (CTAB). A significant difference in the polymerization pattern, morphologies, and electrical properties was recognized in these composites according to the functionality of the modified AuNPs. The obtained composites of AuNPs/PANI exhibited highly diverse morphologies (e.g., nodule, hollow hemisphere, flake, and spider-web galaxy type) and electrical characteristics according to functionalization. Hence, this study is expected to offer better insight into control of the polymerization pattern of AuNP/PANI composites and their associated properties.

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Nanofibers synthesis of ND:PANI composite by liquid/liquid interfacial polymerization and study on the effect of NDs on growth mechanism of nanofibers

Cited by 22 publications

References 33 publications

A facile and low-cost route for producing a flexible hydrogel–PANI electrolyte/counter electrode applicable in dye-sensitized solar cells (DSSC)

A facile and low-cost route for producing a flexible hydrogel–PANI electrolyte/counter electrode applicable in dye-sensitized solar cells (DSSC)

CVD Conditions for MWCNTs Production and Their Effects on the Optical and Electrical Properties of PPy/MWCNTs, PANI/MWCNTs Nanocomposites by In Situ Electropolymerization

A Novel Approach for Effective Alteration of Morphological Features of Polyaniline through Interfacial Polymerization for Versatile Applications

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