Effect of pH on the properties of chemical bath deposited polyaniline thin film

Patil, Rahul B.; Jatratkar, Aviraj A.; Devan, Rupesh S.; Ma, Yuan‐Ron; Puri, Rajeev K.; Puri, Vijaya; Yadav, J.B.

doi:10.1016/j.apsusc.2014.11.128

Cited by 28 publications

(18 citation statements)

References 30 publications

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“…[7] Metal oxides, conducting polymers, and their composites with transition metal oxides are mostly employed as electrode materials in the fabrication of pseudocapacitors due to their high specific capacitance and extended operating voltage. [15,[22][23][24][25][26][27][28] Gold-, platinum-, stainless steel-, carbon-based electrodes and indium-doped tin oxide (ITO)-coated glasses have been employed as substrates for the deposition of PANI electrochemically [29][30][31][32][33] for specified application. Such reactions are also responsible for charge storage properties in rechargeable batteries but do not produce triangular GCDC but having plateau on the GCDC.…”

Section: Introductionmentioning

confidence: 99%

“…Different types of conducting polymers such as polyaniline, poly ( o ‐aminophenol), polypyrrole, poly ( o ‐phenylenediamine) have been used either in pristine or in composite form with other polymers, metal oxides, and carbon materials as active electrode materials for application in pseudocapacitors . Among conducting polymers, polyaniline (PANI) has been extensively studied by researchers due to its environmental stability, thermal stability, simple doping–dedoping chemistry, excellent electrical, electrochemical, and optical properties . Gold‐, platinum‐, stainless steel‐, carbon‐based electrodes and indium‐doped tin oxide (ITO)‐coated glasses have been employed as substrates for the deposition of PANI electrochemically for specified application.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical co‐deposition and characterization of polyaniline and manganese oxide nanofibrous composites for energy storage properties

et al. 2017

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Ion diffusion rate and contact surface area of conducting polymers increased by composite formation with nanometric-size materials make them promising materials in the fabrication of energy storage devices. In this work, electronically conducting polyaniline and manganese oxide (PANI/MnO 2 ) nanofibrous composites were electrochemically co-deposited on stainless steel from binder-free electrolyte solution. Structural characterization and morphological characterization of the materials were performed with Fourier-transformed infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). SEM images show fibrous micro/nano-architecture of the composites with cluster networking structure having 200-500 nm length and 100-200 nm diameter. Electrochemical and energy storage properties of the assynthesized materials were investigated with cyclic voltammetry (CV), galvanostatic charge discharge curves(GCDC), and potentiostatic electrochemical impedance spectroscopy (PEIS) without any binders. Electrochemical measurements as well as galvanostatic charge discharge curves at 1 mA constant current have shown maximum specific capacitance of 149 F/g for the composite prepared with 0.15 M MnSO 4 in the co-deposition bath. The composites retain 67% specific capacitance even after 400 cycles, indicating the stability of synthesized composite. PEIS confirms the pseudocapacitive nature of the synthesized composites. K E Y W O R D S conducting polymers, energy storage, impedance spectroscopy, PANI/MnO x composites How to cite this article: Shah A-u-HA, Khan MO, Bilal S, Rahman G, Hung HV. Electrochemical co-deposition and characterization of polyaniline and manganese oxide nanofibrous composites for energy storage properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemical co‐deposition and characterization of polyaniline and manganese oxide nanofibrous composites for energy storage properties

et al. 2017

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“…For the last decade, several inorganic electrochromic materials and organic electrochromic materials have been extensively studied [2,3]. Organic electrochromic material is more attractive compared with inorganic electrochromic materials due to the advantages in low costs, the short response time and the multiple color changes [4,5]. Conducting polymer films have been widely used as organic electrochromic material.…”

Section: Introductionmentioning

confidence: 99%

“…Among the conducting polymers, polyaniline (PANI) exhibits additional physical and chemical properties such as excellent environmental stability, easy deposition, stability in aqueous solutions and relatively high level of electrical conductivity [6]. PANI has been used in several applications, such as biochemical sensors, rechargeable batteries, sensors, electrochromic windows, electromagnetic interference shielding and corrosion protection [5][6][7]. PANI has four redox states with different colors which are, yellow colored leucoemeraldine base (LB, fully reduced state), green colored emeraldine salt (ES, half oxidized state), blue colored emeraldine base (EB, half oxidized state) and finally, violet colored pemigraniline base (PB, fully oxidized state) [8].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical synthesis of polyaniline/inorganic salt binary nanofiber thin films for electrochromic applications

Firat

Peksöz

2016

J Mater Sci: Mater Electron

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Polyaniline conductive polymer thin films without or with LiClO 4 inorganic salt were coated by electrochemical deposition method on ITO surface. Electrochromic stability test, electrochemical behavior, coloring performance, optical properties and surface formations of the produced films were studied in detail. The deposited films were found to have a good stability. Electrochemical analysis showed that the conductivity of LiClO 4 doped PANI film was higher than that of the PANI. Oxidation and reduction peaks, and potentials differed significantly depending on the content of the electrolytes. SEM studies demonstrated that the surface of each film consisted of completely nanofibers. Addition of LiClO 4 to the deposition electrolyte decreased substantially the diameter of these nanofibers. PANI film with LiClO 4 exhibited four colors, while pure PANI film had three different colors. The EDX results obtained from the surface of LiClO 4 doped PANI material indicated that PANI and LiClO 4 could be successfully linked to form PANI/LiClO4 binary thin film.

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“…Each chain was separated by a distance of at least 5 Å, to give PANI‐EB and PANI‐ES spherical nanoparticles of 90 Å diameter. The emeraldine forms (base and salt) of PANI are sensitive to pH change (Lindfors and Ivaska , Patil et al , Tanwar and Ho ), which produces changes in the backbone because of the imine nitrogen located in the quinoid segment (INQS) undergoing protonation or deprotonation (Teasdale and Wallace ). Therefore, three different PANI‐EB nanoparticles were built in order to simulate the environments in methanol solution (0% protonated INQS), whisky (50% protonated INQS) and red wine (75% protonated INQS).…”

Section: Methodsmentioning

confidence: 99%

Simple approach for cleaning up 2,4,6‐trichloroanisole from alcoholic‐beverage‐reconstituted solutions using polymeric materials

Valdés

Maricán

Ávila-Salas

et al. 2019

Australian Journal of Grape and Wine Research

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Background and Aims 2,4,6‐Trichloroanisole (TCA) is a well‐recognised contaminant in the wine and whisky industries. In this work, several polymeric materials were tested through a hybrid strategy (computational and experimental studies) as potential fining agents for elimination of TCA. Methods and Results Sodium alginate, polyaniline emeraldine base (PANI‐EB), polyaniline emeraldine salt (PANI‐ES) and three cross‐linked derivatives of different generations (G3, G4 and G5) of polyamidoamine (PAMAM) were tested. Materials were characterised by Fourier transform infrared spectroscopy and thermogravimetric analysis. The amount of material and the interaction time needed to achieve TCA sorption were optimised in a screening study. The binding capacity of the materials was then determined in methanol‐reconstituted wine and whisky solutions to demonstrate their effectiveness. The proportion of TCA in wine retained by PANI‐ES, PANI‐EB and PAMAM‐G5‐CD was greater than 75%, and for whisky all polymers except PANI‐ES retained greater than 75% of TCA. The concentration of phenolic substances of both methanol‐reconstituted solutions was measured after treatment; most of the polymers had no impact on the concentration of phenolic substances. The intermolecular interactions between the polymeric materials and TCA were characterised by computational studies involving molecular dynamics simulations. Conclusions The polymers PAMAM G5‐CD and PANI‐EB retained the most TCA in reconstituted red wine and whisky solutions. Significance of the Study The provision of efficient materials for the removal of TCA will improve the purification processes employed in beverage production.

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Effect of pH on the properties of chemical bath deposited polyaniline thin film

Cited by 28 publications

References 30 publications

Electrochemical co‐deposition and characterization of polyaniline and manganese oxide nanofibrous composites for energy storage properties

Electrochemical co‐deposition and characterization of polyaniline and manganese oxide nanofibrous composites for energy storage properties

Electrochemical synthesis of polyaniline/inorganic salt binary nanofiber thin films for electrochromic applications

Simple approach for cleaning up 2,4,6‐trichloroanisole from alcoholic‐beverage‐reconstituted solutions using polymeric materials

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