Pulse electropolymerization and the characterization of polyaniline nanofibers

Karami, Hassan; Asadi, Mohammad G.; Mansoori, Masoomeh

doi:10.1016/j.electacta.2011.11.097

Cited by 52 publications

(37 citation statements)

References 61 publications

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“…The approaches adopted for the production of PANI nanofibers include electrochemical polymerization and chemical oxidative polymerization. Many methods of electrically synthesizing PANI nanofibers include potentiostatic, pulse galvanostatic and pulse potentiostatic polymerizations. Chemical oxidative polymerization can be divided into two categories, i.e.…”

Section: Preparation Of Pani Nanofibersmentioning

confidence: 99%

Preparation and application of polyaniline nanofibers: an overview

Wang

2018

Polymer International

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Polyaniline (PANI) nanofibers have enhanced water processibility and improved sensitivity and response time when exposed to chemical vapors, and unique advantages in other fields including electric devices and corrosion inhibition. Therefore, PANI nanofibers have attracted great interest and have potential for many commercial applications. In this paper, the advantages, formation mechanism, characteristics and factors influencing various methods for preparing PANI nanofibers are described in detail. Their conductive properties and mechanism are briefly introduced. Finally, the potential applications of PANI nanofibers are elaborated in many fields such as gas sensors, capacitors, electrode materials for cells, removal of contaminants from water, corrosion inhibition, enzyme immobilization, Schottky diodes, and so on. © 2018 Society of Chemical Industry

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Section: Preparation Of Pani Nanofibersmentioning

confidence: 99%

Preparation and application of polyaniline nanofibers: an overview

Wang

2018

Polymer International

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“…Although this method has its own limitations and morphologies recorded thereon is always unreliable. Consequently reliable electron microscopy of the electroactive materials is limited to SEM only (Zhang & Wan, 2003;Muthukumar et al, 2007;Zhang et al, 2007Zhang et al, , 2004Karami et al, 2012). Albeit few reports are known (Liu et al, 2015) in the literature, where material grown on glassy carbon electrode were monitored in situ by TEM.…”

Section: Discussionmentioning

confidence: 99%

Electrochemical loading of TEM grids used for the study of potential dependent morphology of polyaniline nanofibres

Bhadu

Paul

Perween

et al. 2015

Journal of Microscopy

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An electrochemical method for loading electroactive materials over the TEM grid is reported. The protocol has been demonstrated using polyaniline as an example. The electroactive polymer was directly deposited over the Au TEM grid, used as working electrode in a 3 electrode electrochemical cell. The undisturbed as-deposited morphologies under the influence of various counter ions and ex situ electrochemical states have been studied and compared. Contrary to behaviour in bulk the individual polyaniline fibre was found thinner at anodic potentials. The movement of counter ions as a function of the electrochemical state of the polymer was studied using STEM-EDX elemental mapping.

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“…30 Interestingly, in the TBAF/ethylene glycol system the electropolymerization of APBA does not need any addition of exogenous protons and moreover, a high acidity is found to be unfavorable for the electropolymerization of APBA. 30 Interestingly, in the TBAF/ethylene glycol system the electropolymerization of APBA does not need any addition of exogenous protons and moreover, a high acidity is found to be unfavorable for the electropolymerization of APBA.…”

Section: Influence Of Protons On the Electropolymerizationmentioning

confidence: 99%

Electrochemical synthesis of poly(3-aminophenylboronic acid) in ethylene glycol without exogenous protons

Wang

Zou

et al. 2016

Phys. Chem. Chem. Phys.

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A non-aqueous solution of tetra-n-butylammonium fluoride (TBAF) in ethylene glycol has been tried for the first time as a supporting electrolyte for the electropolymerization of 3-aminophenylboronic acid (APBA). Unlike the traditional acidic aqueous solution, the present medium needs no exogenous protons; moreover, the presence of CF3COOH is found to be unfavorable for the polymerization. The protons are in situ generated by the reaction between the boronic acid group on APBA and 1,2-dihydroxyl on ethylene glycol. So, ethylene glycol serves as not only the solvent but also the proton source. As a part of the supporting electrolyte, F(-) is found to be involved in the electrochemical synthesis of poly(3-aminophenylboronic acid) (PAPBA), but it is not indispensable. Studies on the electropolymerization process indicate that the size of the ions in the electrolyte affects the rate of the doping/dedoping process. The smaller the cation, the easier the doping/dedoping process, and the better the stability of the grown film. As demonstrated by Fourier transform infrared spectra, UV-vis spectra, and scanning electron microscopy, the obtained PAPBA is a cross-linked nanoporous polymer membrane that has a good adherence to the glassy carbon electrode.

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Pulse electropolymerization and the characterization of polyaniline nanofibers

Cited by 52 publications

References 61 publications

Preparation and application of polyaniline nanofibers: an overview

Preparation and application of polyaniline nanofibers: an overview

Electrochemical loading of TEM grids used for the study of potential dependent morphology of polyaniline nanofibres

Electrochemical synthesis of poly(3-aminophenylboronic acid) in ethylene glycol without exogenous protons

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