The influence of the PANI structure on the conductive mechanism and on the electrical equivalent circuit analysis

Žic, Mark

doi:10.1016/j.jelechem.2009.07.019

Cited by 24 publications

(23 citation statements)

References 42 publications

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“…7). In addition, previously reported results [13,15,19,20] show that the lower imaginary and real impedance values indicate the facilitated anion exchange process detected in the low frequency region. Furthermore, it was demonstrated that an increase in applied potential induced the facilitated PANI anion exchange property [13].…”

Section: Impedance Response Of the Stainless Steel Coated By Panimentioning

confidence: 66%

“…To challenge the idea that the polymer's ability to replace the anions and the process detected in the low frequency region are two correlated processes, it is necessary to obtain conditions in which the anions are only electroactive specie responsible for PANI electroactive behavior [1,2,13,19,20]. Therefore, EIS measurements were carried out in a 3 mol dm À3 H 3 PO 4 at 530 and 400 mV in the potential region of the capacitive current plateau.…”

Section: Impedance Response Of the Stainless Steel Coated By Panimentioning

confidence: 99%

“…It is widely accepted that several EECs can mathematically fit a set of the impedance data [20,39], therefore conclusions based on the EEC analysis are in principle doubtful if there are no other supporting facts. Therefore, the PANI coatings of different thicknesses and the dissimilar applied potential were used, because it was shown [19] that the PANI faradaic process is under the influence of the above stated conditions.…”

Section: Eec Testingmentioning

confidence: 99%

“…Furthermore, two processes are interpreted as crucial to maintain the electroneutrality of PANI, which is perturbed by electrons that enter/leave the electrode due to redox process in the layer [1]. The fact that the counter-ions need to move through PANI during the potential perturbation signal [1,15,18] was used to show that the PANI structure has a significant influence on the impedance response in the low frequency region [19,20]. In addition, the useful suggestion [19,20] that the low frequency region is under the influence of the PANI structure was used to develop the proposed method.…”

Section: Introductionmentioning

confidence: 99%

“…The fact that the counter-ions need to move through PANI during the potential perturbation signal [1,15,18] was used to show that the PANI structure has a significant influence on the impedance response in the low frequency region [19,20]. In addition, the useful suggestion [19,20] that the low frequency region is under the influence of the PANI structure was used to develop the proposed method. Many papers investigated PANI [13,15,21] and poly-OPDA [22][23][24][25] by EIS, however the effect of the modified PANI structure disturbed by the high OPDA additions on the impedance spectra in the low frequency region was not entirely explained [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Influence of the OPDA additions on impedance response and on anion exchange property of the modified PANI

Žic

2010

Journal of Electroanalytical Chemistry

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Section: Impedance Response Of the Stainless Steel Coated By Panimentioning

confidence: 66%

Section: Impedance Response Of the Stainless Steel Coated By Panimentioning

confidence: 99%

Section: Eec Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of the OPDA additions on impedance response and on anion exchange property of the modified PANI

Žic

2010

Journal of Electroanalytical Chemistry

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Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

Kong

Luo

Zhao

et al. 2019

Adv Funct Materials

151

104

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Biological systems have evolved over billions of years to develop wetting strategies for advantageous structure-property-performance relations that are crucial for their survival. The discovery of these intriguing relationships has inspired tremendous efforts to investigate the micro/nanoscale features of naturally occurring structures with superwettability. Researchers have since developed new methods and techniques to construct artificial materials that mimic natural structures and functionalities. Here, a brief review of natural hierarchical architectures with liquid repellent properties is presented, and the critical underlying mechanism is summarized with an emphasis on the micro/nanoscopic architectures. The state-of-the-art micro/nanofabrication techniques for creating bioinspired hierarchical superwettability structures that are categorized by random and exquisite features are also reviewed, followed by an overview of their emerging applications, with special attention to biomedical-related fields. The development of fabrication techniques enhances capabilities relative to those of living systems, paving the way toward advanced structural materials with superior functions and unprecedented characteristics for potential applications. Figure 1. Natural superwettable surfaces. Scanning electronic microscopy (SEM) images demonstrate the surface micro/nanostructures of a) lotus leaf, [4] b) Salvinia molesta, [115] c) cicada wings, [109] d) mosquito eye, [37] e) cactus spines, [110] f) desert beetle, [2] g) water strider, [5] h) springtail skin, [145] and i) pitcher plant. [50] The examples represent a range of different intelligent surfaces that exist in nature. Reproduced with permission. [4]

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New type of tri‐pyridyl inhibitor‐loaded polyaniline nanospheres for durable protection anticorrosion coatings

Bao,

Wu,

Liu

et al. 2024

J of Applied Polymer Sci

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Polyaniline (PANI) is considered as one of the most promising corrosion inhibitors because of its unique redox and environmental stability. Pyridine and its derivatives can chelate metal ions during corrosion, forming an inert protective layer on the metal surface to achieve the anticorrosion effect. Therefore, polyaniline is combined with pyridine together to achieve deep anticorrosion in this work. 4‐((2,2′:6′,2″‐terpyridin)‐4′‐yl)aniline (TPY) and 1,3,5‐benzenetricarbonyl chloride (TMC) were applied to synthesize a novel corrosion inhibitor N1, N3, N5‐tri (4‐((2,2′: 6′, 2′‐tri‐pyridine)‐4′‐yl) phenyl) benzene‐1,3,5‐tri‐formamide (TBT). Then, TBT was in situ loaded onto the PANI surface to obtain the composite TPANI. The TPANI was successfully dispersed in epoxy resin (EP) at various dosages to prepare composite coatings. Electrochemical impedance spectroscopy and salt fog tests were employed to evaluate the performance of the coatings. After experimentation, we discovered that when the TPANI content was 0.25 wt%, the impedance value remained stable at 5.83 × 109 Ω cm2 after immersing the coatings in a 3.5 wt% NaCl solution for 28 days. In contrast, the EP coating exhibited a resistance decrease ranging from 9.56 × 109 to 7.8 × 108 Ω cm2 within the same soaking time, decreasing by an order of magnitude, while the TPANI‐0.25% coating still maintaining a high order of magnitude. These results indicated that the TPANI filler effectively preserved long‐term stability and provided persistent protection against corrosion. The protective mechanism of TPANI composite coatings was further elucidated through detailed analysis. Overall, the incorporation of TPANI into the epoxy resin yielded promising results, demonstrating its potential as an effective corrosion inhibitor for protective coatings.

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The influence of the PANI structure on the conductive mechanism and on the electrical equivalent circuit analysis

Cited by 24 publications

References 42 publications

Influence of the OPDA additions on impedance response and on anion exchange property of the modified PANI

Influence of the OPDA additions on impedance response and on anion exchange property of the modified PANI

Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

New type of tri‐pyridyl inhibitor‐loaded polyaniline nanospheres for durable protection anticorrosion coatings

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