DC Conductivity Study of Polyaniline/NiO Nanocomposites prepared through Green Synthesis

Inamdar, Hajeebaba K.; Basavaraj, R.B.; Nagabhushana, H.; Devendrappa, Mahalesh; Ambalgi, Sharanabasamma; Sannakki, Basavaraja; Mathad, R. D.

doi:10.1016/j.matpr.2016.11.039

Cited by 12 publications

(6 citation statements)

References 10 publications

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“…A typical in situ oxidative polymerization method was used to synthesize α-MnO 2 /PANI binary nanocomposites by using the literature with little modification [11]. In brief, 0.5 mL aniline was dissolved in 100 mL of 1 M HCl by using a glass round-bottom flask.…”

Section: Methodsmentioning

confidence: 99%

“…A typical in situ chemical oxidative method was used to prepare α-MnO 2 /NiO/PANI ternary composites based on the literature with little modification [11]. Briefly, 0.5 g of homogenously suspended α-MnO 2 /NiO bimetallic NPs was dispersed in aniline hydrochloride aqueous solution (0:1 M aniline + 1 M HCl ðdopantÞ + 1:43 g of 50 mL APS ðcodopantÞ).…”

Section: Methodsmentioning

confidence: 99%

“…So, researchers usually combined different TMO with conducting polymers to modify conventional carbon material properties such as electrical conductivity, compatibility, and dispersibility [11][12][13]. As an advance, electrical conductivity, biocompatibility, high surface area, and surface roughness are the main requirement for bacterial attachment in MFC anodes [14].…”

Section: Introductionmentioning

confidence: 99%

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Surface Roughness and Electrochemical Performance Properties of Biosynthesized α-MnO2/NiO-Based Polyaniline Ternary Composites as Efficient Catalysts in Microbial Fuel Cells

Dessie

Tadesse

Eswaramoorthy

2021

Journal of Nanomaterials

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In this study, biosynthesized α-MnO2/NiO NPs and chemically oxidative polyaniline (PANI) were synthesized to form ternary composite anode material for MFC. The synthesized materials were characterized with different materials (UV-Vis, FTIR, XRD, TGA-DTA-DSC, SEM-EDX-Gwyddion, CV, and EIS) to deeply examine their optical, structural, morphological, thermal, roughness, and electrocatalytic properties. The degree of surface roughness for α-MnO2/NiO/PANI was 23.65 ± 5.652 nm . This value was higher than the pure α-MnO2, pure PANI, and even α-MnO2/PANI nanocomposite due to surface modification. The total charge storing performance for bare PGE, α-MnO2/PGE, PANI/PGE, α-MnO2/PANI/PGE, and α-MnO2/NiO/PANI/PGE were 5.291, 17.267, 20.659, 23.258, and 24.456 mC. From this, the charge storing performance formed by α-MnO2/NiO/PANI-modified PGE was highest, indicating that this electrode is best in cycle stability and increases its life cycle during energy conversion time in MFC. This is also supported by its effective surface area, having a value of 0.00984 cm2. From this, it is evidenced that the ternary composite catalyst-modified anode facilitates the fast electrocatalytic activity as observed from its high peak current and lower peak-to-peak potential separation ( Δ E p = 0.216 V ) than other electrodes. Such surface modification helps to store more electrical charge by increasing electrical conductivity during its charge/discharge processing time. In addition, the lower charge transfer resistance property with a value of 788.9 Ω and the fast heterogeneous electron transfer rate of ~2.92 s-1 enable to facilitate glucose oxidation, and this enhances to produce high power output and increase wastewater treatment efficiency. As a result, the bioelectrical activity of α-MnO2/NiO/PANI composite-modified PGE was very effective in producing a maximum power density of 506.96 mW m-2 with COD of 81.92%. The above observations justified that α-MnO2/NiO/PANI/PGE serves as an effective anode material in double-chambered MFC application.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Surface Roughness and Electrochemical Performance Properties of Biosynthesized α-MnO2/NiO-Based Polyaniline Ternary Composites as Efficient Catalysts in Microbial Fuel Cells

Dessie

Tadesse

Eswaramoorthy

2021

Journal of Nanomaterials

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“…Conductive polymers such as polyaniline (PANI), polypyrrole (PPy), and their composites are widely uses as sensors [1,2], energy storage materials, due to the facile synthesis and flexibility in processing [3]. Conducting polymers including polypyrrole (PPy), polyaniline (PANI), PPV, polyethylene di-oxythiophene (PEDOT), and polythiophene (PT) have both electrochemical double layer capacitance and pseudocapacitance arising from the fast and reversible oxidation and reduction processes related to their p-conjugated polymer chains [1][2][3]. Among these conducting polymers, PPy is outstanding as a promising electrode material for supercapacitors, because it has various significant advantages such as high specific capacitance, good conductivity, bio-compatibility and outstanding mechanical properties [4].…”

Section: Introductionmentioning

confidence: 99%

Structural and Optical Properties of Polypyrrole/NiO Doped Nanocomposites

Inamdar¹,

Sridhar²,

Sasikal³

et al. 2018

JNST

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This study reports the synthesis of polypyrrole/NiO doped nanocomposites (NCs) as a shielding pigment in organic coatings. Polypyrrole/NiO doped NCs were prepared by in-situ chemical oxidative polymerization of pyrrole monomer. Here dopant NiO nanoparticles (NPs) were synthesized by solution combustion method using Aloe vera gel as fuel with ammonium per sulphate (APS) as oxidant. Different concentrations of NiO (10-50 wt%) NPs were incorporated into the polypyrrole. The synthesized nanocomposites were characterized by means of powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The size of the NPs were calculated by Scherer method, and found to be around 20 nm. TEM results are in consistent with the XRD results. The morphology of the obtained composites shows the porous and agglomerated particles which are due to large amount of gas evolution during NPs synthesis by solution combustion method and optical properties were studied.

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“…The fillers are natural minerals, metal oxides, carbon nanotubes, and ferroelectric materials etc., combined with efficient coupling agent to obtain the optimized PANI composites [1][2][3][4][5]. Polyvinylidene fluoride (PVDF) is one of the highest dielectric permittivity of all the polymers, is widely used in many fields due to its good piezoelectric, pyroelectric response and low impedance [6][7][8][9][10][11][12]. In the present study Polyaniline and its polymer composites with polyvinylidenefluoride (PVDF) at different weight percentages were synthesized.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of PANI/PVDF Composites for Dielectric and AC Conductivity

Nagaraja¹,

Ambalagi²,

Inamdar³

et al. 2018

JNST

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The polymer composites of polyaniline (PANI) with PVDF have been synthesized by polymerization method. The different composites of PANI with PVDF are obtained by adding 0.5, 1, 1.5, 2 and 2.5 N solutions of PVDF during the polymerization to get the PANI/PVDF composites. The synthesized samples of PANI and composite of PANI with PVDF polymer were characterized by using X-Ray diffraction (XRD). The dielectric properties such as dielectric constant, dielectric loss and AC conductivity for the composites of PANI/PVDF at different weight percentages are studied as a function of frequency in the range 5 Hz–35 MHz at ambient temperature. It is found that the dielectric permittivity decreased exponentially at lower frequency region up to 300 Hz and then the dielectric permittivity remains constant at higher frequency region as the frequency increased. It is also observed that the dielectric permittivity increased as the concentration of PVDF in the polymer composite increased as compared to PANI. Further, it is observed that the dielectric loss increased as a weight percentage of PVDF increased in the composite of PANI. In case of AC conductivity as the frequency increased the AC conductivity remains constant up to 6.75 MHz and afterwards it increases as frequency increased. This is due to the increase in charge carriers through the hopping mechanism in the polymer composites. It is also observed that as a weight percentage of PVDF increased the AC conductivity is also increased

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DC Conductivity Study of Polyaniline/NiO Nanocomposites prepared through Green Synthesis

Cited by 12 publications

References 10 publications

Surface Roughness and Electrochemical Performance Properties of Biosynthesized α-MnO2/NiO-Based Polyaniline Ternary Composites as Efficient Catalysts in Microbial Fuel Cells

Surface Roughness and Electrochemical Performance Properties of Biosynthesized α-MnO2/NiO-Based Polyaniline Ternary Composites as Efficient Catalysts in Microbial Fuel Cells

Structural and Optical Properties of Polypyrrole/NiO Doped Nanocomposites

Synthesis and Characterization of PANI/PVDF Composites for Dielectric and AC Conductivity

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