Investigation of polymer-dopant interactions in polyaniline-modified electrodes: in situ analysis by FTIR spectroscopy

Seeger, David M.; Kowalchyk, Will K.; Korzeniewski, Carol

doi:10.1021/la00100a001

Cited by 27 publications

(4 citation statements)

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“…16,17 The shifting of wave numbers suggest that there are strong interactions between PANI and CdS. Wave numbers in the 1300-1305 cm À1 range have been assigned to the mode of C-N delocalized polarons of PANI which are shifted to higher wave numbers at about 1407 cm À1 in the PANI/CdS composite and this change of 100 cm À1 in C-N delocalized polarons is consistent with an ionic perturbation, 18 further suggesting that PANI and CdS share a strong interaction with each other.…”

Section: Ftir Studymentioning

confidence: 73%

Studies on facile synthesis of polyaniline/cadmium sulfide composites and their morphology

Ingle

Arote

Prasad

et al. 2014

High Performance Polymers

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A composite of polyaniline (PANI) and cadmium sulfide (CdS) has been prepared via chemical bath deposition with crystalline structures which is confirmed from the X-ray diffraction (XRD) studies. Scanning electron microscopic studies and XRD have shown that the morphology and crystallinity of the materials in the composite have apparently changed after the formation of composite. The transmission electron microscopic study has revealed that there is an increase in the crystallite size of CdS and its impregnation into the granular pillar-like structure of PANI. The absorption edge of the composite red shifted as compared to that of CdS and blue shifted with respect to that of PANI. Fourier transform infrared spectroscopic studies show a clear shifting of wave numbers indicating the interaction between CdS and PANI due to the strengthening of the C=C bond in PANI.

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Section: Ftir Studymentioning

confidence: 73%

Studies on facile synthesis of polyaniline/cadmium sulfide composites and their morphology

Ingle

Arote

Prasad

et al. 2014

High Performance Polymers

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“…1087 cm -1 is corresponding to C-N + = C radical cation stretching modes, [10] which is observed for sample -a, b, and c. The stretching mode 1146 cm -1 in HCl doped samples (d and e) has blue shifts around 60 cm -1 . Seeger et al [11] stated that such blue shifts are due to the bond vibrations in phenyl rings of PANI, which are strongly perturbed by the charged polymers (H + Cldopant ions). The perturbed mode, 1140-1146 cm -l for sample -c and e, is attributed to C-N stretching mode.…”

Section: Ftir Studymentioning

confidence: 99%

Polyaniline Doped with Protonic Acids: Optical and Morphological Studies

Ingle¹,

Shaikh²,

Bhujbal³

et al. 2020

ES Mater.Manuf.

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In this work, polyaniline (PANI) and its doped state with microfiber morphologies were easily synthesized by a chemical route under the oxidative polymerization, in which the polymerization was performed in an acidic medium (protonic acids). In situ polymerization of aniline reacted with the chloride and sulfate ions of hydrochloric and sulfuric acid, respectively. The microfiber-like morphology of undoped and HCl doped PANI was observerd. The X-Ray diffraction patterns represented that H2SO4 doped PANI was crystalline in nature. The effects of dopant acids on its optical properties were discussed. The strong interaction between chloride and sulfate ions with the ammonium group of PANI has been explained. The microfiber and granular morphology for HCl and H2SO4 doped PANI were observed. The redshifts were observed for the microfiber nature of doped PANI. These analytical results confirmed that the prepared PANI was in the doped state. Further, we found that the prepared PANI can be used for the fabrication of polymer solar cells.

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“…1). Differences in chemical structures of various oxidation forms of PAN were characterized by spectroscopic methods such as infrared [32,33], and Raman [34], etc.…”

Section: Headspace-spme Extraction Proceduresmentioning

confidence: 99%

Enhancing extraction rate in solid‐phase microextraction by using nano‐structured polyaniline coating

Mehdinia

Mousavi

2008

J of Separation Science

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The decrement of equilibrium extraction time without losing extraction efficiency in solid-phase microextraction (SPME) was achieved using nano-structured coating. Polyaniline (PANI) was used as an extraction phase for the comparison of extraction capacity and equilibrium extraction time of nano- and micro-structured coatings. Polychlorinated biphenyls (PCBs) were used as model compounds to examine the extraction properties of nano- and micro-structured coatings. The results revealed that nano-structured PANI coating showed higher extraction rate and shorter desorption time than micro-structured coating, because of the larger surface area. In order to evaluate the extraction capability of prepared nano-structured PANI coating, headspace-SPME method was used for the determination of PCBs in sediment samples by GC-electron capture detector. The proposed method was validated using the certified reference material.

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Investigation of polymer-dopant interactions in polyaniline-modified electrodes: in situ analysis by FTIR spectroscopy

Cited by 27 publications

References 0 publications

Studies on facile synthesis of polyaniline/cadmium sulfide composites and their morphology

Studies on facile synthesis of polyaniline/cadmium sulfide composites and their morphology

Polyaniline Doped with Protonic Acids: Optical and Morphological Studies

Enhancing extraction rate in solid‐phase microextraction by using nano‐structured polyaniline coating

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