| Titre : |
Polyaniline/g-C3N4 composites as novel media for anticorrosion coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Shixiang Zuo, Auteur ; Yao Chen, Auteur ; Wenjie Liu, Auteur ; Chao Yao, Auteur ; Yingruo Li, Auteur ; Jiangquan Ma, Auteur ; Yong Kong, Auteur ; Huihui Mao, Auteur ; Li Zhongyu, Auteur ; Yongsheng Fu, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 1307-1314 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Electrochimie
Exfoliation
Nitrure de carbone graphitique
Polyaniline
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In this paper, graphitic carbon nitride (g-C3N4) was first proposed for the pioneer application of anticorrosion coatings. Original g-C3N4 was facilely treated using HNO3 and the exfoliated g-C3N4 sheets (E-g-C3N4) were fabricated, and then, polyaniline/E-g-C3N4 composites (PANI/E-g-C3N4) as novel anticorrosive media were synthesized by chemical oxidative polymerization and devoted to the corrosion protection of coatings. The E-g-C3N4 sheets and PANI/E-g-C3N4 composites were characterized by X-ray diffraction, Fourier transform infrared, thermogravimetric analysis, and transmission electron microscopy. The anticorrosion properties of the samples prepared were investigated by electrochemical measurements including Tafel plots, electrochemical impedance spectra, and open-circuit potential. Accelerated corrosion tests of iron panels coated by PANI/E-g-C3N4 were performed in 3.5 wt% NaCl solution. Anticorrosive mechanism of PANI/E-g-C3N4 was discussed in detail. PANI/E-g-C3N4-3 fillers possessed superior corrosion inhibition than individual components on iron coatings, which was due to the synergetic effect of anticorrosion between E-g-C3N4 and PANI. |
| Note de contenu : |
- EXPERIMENTAL : Preparation of PANI/E-g-C3N4 composites - Preparation of anticorrosion coatings - Characterization methods - Evaluation of anticorrosion performance
- RESULTS AND DISCUSSION : Structures characterization - Morphologies characterization - Corrosion studies |
| DOI : |
10.1007/s11998-017-9916-7 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9916-7.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29635 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 6 (11/2017) . - p. 1307-1314
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