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Protection for galvanized steel in 3.0 % NaCl solution by SG/CTAB

Erschienen am 28.10.2016, 1. Auflage 2016
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Bibliografische Daten
ISBN/EAN: 9783659963926
Sprache: Englisch
Umfang: 52 S.
Format (T/L/B): 0.4 x 22 x 15 cm
Einband: kartoniertes Buch

Beschreibung

In this book, the influence of Sodium Gluconate (SG), Cetyltrimethylammonium Bromide (CTAB) and their mixture on galvanized steel corrosion in 3.0 % NaCl solution was investigated by using electrochemical measurement coupled with Scanning Electron Microscopy (SEM). The polarization measurements indicated that SG, CTAB and their mixture acted as cathodic-type inhibitors. Indeed, a synergistic effect was found between SG and CTAB. In fact, the inhibition efficiency of the mixture reached 94 % at 10-3 M of SG with 2.74×10-5 M of CTAB. In addition, this inhibition efficiency improved remarkably with immersion time and slightly decreased with temperature. The SEM observations and energy dispersive X-ray (EDAX) analysis indicated that the surface homogeneity increased with mixture addition. Finally, the thermodynamic parameters (G*a, H*a, S*a) were determined and discussed.

Autorenportrait

RACHID TOUIR Professor of didactics of chemistry and physics at CRMEF Rabat, Morocco, I have published more than 65 papers in international journals and three patents. I have presented several conferences. I am reviewer member in several journals. I have supervised numerous Ph.D. and M.A. theses

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