Heptanoic acid adsorption on grafted palygorskite and its application as controlled-release corrosion inhibitor of steel - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Materials Chemistry and Physics Année : 2014

Heptanoic acid adsorption on grafted palygorskite and its application as controlled-release corrosion inhibitor of steel

Résumé

This study deals with the anchoring of heptanoic acid (HC7) as a corrosion inhibitor to palygorskite clay mineral originated from High Atlas of Marrakech (Morocco) beforehand grafted with 3-aminopropyltriethoxysilane (APTES) entities. Physicochemical characterizations (XRD, FTIR, TG-MS, zeta potential measurements) confirmed the success of the APTES-grafting to silanol sites of palygorskite fibers edges and the heptanoate anions bonding to terminal NH3+ sites of grafted-APTES. Then, full-factorial design allowed optimizing the conditions of heptanoate adsorption. Preliminary electrochemical measurements revealed that functionalized grafted palygorskite (C-7-APTES Pal) can progressively release the heptanoate corrosion inhibitor in 0.1 M NaCl solution to inhibit the steel corrosion processes. (C) 2014 Elsevier B.V. All rights reserved.
Fichier non déposé

Dates et versions

hal-01076883 , version 1 (23-10-2014)

Identifiants

Citer

A. Ait Aghzzaf, B. Rhouta, E. Rocca, A. Khalil, C. Caillet, et al.. Heptanoic acid adsorption on grafted palygorskite and its application as controlled-release corrosion inhibitor of steel. Materials Chemistry and Physics, 2014, 148 (1-2), pp.335-342. ⟨10.1016/j.matchemphys.2014.07.052⟩. ⟨hal-01076883⟩
64 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More