Corrosion protection of molybdate doped polypyrrole film prepared in succinic acid solution

Trung, Vũ Quốc; Hanh, Trinh Hong; Quang, Trần Hồng; Hùng, Hà Mạnh; Linh, Duong Khanh; Lan, Hoang Thi Tuyet; Đức, Lê Minh

doi:10.1080/1478422x.2017.1389370

Cited by 5 publications

(3 citation statements)

References 32 publications

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“…2a-c depicts the morphologies of copolymers synthesized with three methods. Generally, Pani has fibrillar and granular structure and Ppy has cauliflower like structure as known according to literature [19,20]. The chemically synthesized copolymer shows the most similar morphology with the literature (Fig.…”

Section: Sem Resultssupporting

confidence: 55%

Chemical, Electrochemical and Plasma Polymerization of Pyrrole-Aniline Copolymers and Their Characterization

Sarikulak,

Gürsoy

2023

AJACR

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Pyrrole-aniline copolymers (poly(Py-co-Ani)) were synthesized using both three chemical, electrochemical and plasma polymerization methods. Comparison of the copolymers synthesized with three methods was investigated. Fourier transform infrared spectroscopy (FT-IR), thermogravymetric analysis (TG-DTA), scanning electron microscopy (SEM) and conductivity results confirmed that the poly(Py-co-Ani) copolymers were successfully obtained in all cases with some differences according to synthesis methods. It was found that plasma method enhanced the thermal stability of the poly(Py-co-Ani) copolymer. The first thermal decomposition temperatures of chemically, electrochemically and plasma polymerized copolymers are 210, 190 and 250 °C, respectively. However, the conductivity value of plasma polymerized copolymer (1,97x10-4 S.cm-1) is lower than that of chemical (4,40x10-4 S.cm-1) and electrochemical (3,14x10-4 S.cm-1) synthesized copolymers. According to findings chemical and electrochemical polymerization methods provides nearly the same properties to the copolymers. Plasma polymerization method provides better thermal properties to copolymer. The both three methods can be used for preparing the pyrrole and aniline copolymers.

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Section: Sem Resultssupporting

confidence: 55%

Chemical, Electrochemical and Plasma Polymerization of Pyrrole-Aniline Copolymers and Their Characterization

Sarikulak,

Gürsoy

2023

AJACR

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“…Figure 2 illustrates the doped PPy films’ morphology in both cases, with and without CSA dopants and molybdate anion. Doped PPy films were shown to have a characteristic structure with homogeneously dispersed cauliflower‐shaped particles, as reported in references 15, 19, 20. The film's thick structure proved superior at protecting the metal from corrosion.…”

Section: Resultsmentioning

confidence: 87%

Properties and corrosion protection of polypyrrole prepared by electrochemical polymerization on aluminum

Khoe,

Hung,

Duc

et al. 2024

Vietnam Journal of Chemistry

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In a one‐step procedure that did not require any surface preparation, polypyrrole (PPy) films doped with 3‐nitrosalicylic acid (3Nisa) became effectively electropolymerized on the aluminum substrate in aqueous solutions. Fourier transform infrared, scanning electron microscopy, and thermal gravimetric analysis were used to analyze the properties of PPy‐based films. Open circuit potential (OCP), electrochemical impedance spectroscopy, Tafel polarization, and salt spray tests were used to study the corrosion‐resistant efficiency of the coatings. The as‐prepared PPy films performed corrosion resistance on aluminum in the 3% NaCl solution. However, the PPy films prepared in the 0.01 m solution of 3Nisa showed the best protection ability on aluminum. The self‐healing characteristic of the PPy films was recorded by varying the potential in the OCP measurement. The findings indicate the potential of using 3‐nitrosalicylic acid‐doped PPy films for applications as anti‐corrosion coatings for aluminum.

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“…Besides, salicylate ion has been also known as an effective inhibitor dopant of PPy film on iron. − In our recent articles, it was discussed that molybdate dopant can play a role as an inhibitor for PPy smart coatings. Single doping with molybdate anion into PPy films or ion exchange by the polarization of PPy films was reported to provide a self-healing effect for PPy coatings on iron. − They can be released from the film during the reduction process and keep the open circuit potential (OCP) of iron in the passive zone for a long time. Doping both salicylate and molybdate anions into PPy films may be thus expected to enhance even more the corrosion protection performance of LCS.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Polypyrrole Film Doped with Both Molybdate and Salicylate and Its Application in the Corrosion Protection for Low Carbon Steel

et al. 2022

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Polypyrrole (PPy) films doped with molybdate and salicylate have been successfully electropolymerized on low carbon steel in aqueous solutions containing both molybdate and salicylate in a one-step process that did not require any pre-treatment of the steel substrate. Salicylate-doped PPy films were synthesized in the same way for comparison. The steel surface was rapidly inhibited and the PPy-based films were formed on it easily. The PPy-based films were characterized by Fourier transform infrared, scanning electron microscopy, energy dispersive X-ray, and thermal gravimetric analysis methods. The corrosion protection performance of the coatings was investigated with electrochemical impedance spectroscopy, open circuit potential (OCP), salt spray test, and Tafel polarization. It was found that in the presence of both molybdate and salicylate as dopants, the films on steel could present a better corrosion resistance than PPy film doped with only salicylate. The self-healing property of PPy-based films was observed on the OCP measurement with the fluctuation of rest potential. The salt spray test results showed that the PPy film doped with both salicylate and molybdate was more salt-resistant than the PPy film doped with only salicylate. The results suggest that the PPy coatings doped with both molybdate and salicylate are potential for application as metallic anti-corrosion coatings.

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Corrosion protection of molybdate doped polypyrrole film prepared in succinic acid solution

Cited by 5 publications

References 32 publications

Chemical, Electrochemical and Plasma Polymerization of Pyrrole-Aniline Copolymers and Their Characterization

Chemical, Electrochemical and Plasma Polymerization of Pyrrole-Aniline Copolymers and Their Characterization

Properties and corrosion protection of polypyrrole prepared by electrochemical polymerization on aluminum

Synthesis and Characterization of Polypyrrole Film Doped with Both Molybdate and Salicylate and Its Application in the Corrosion Protection for Low Carbon Steel

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