Open AccessGraphene oxide-based nanomaterial as a coating with anti-corrosion properties
Author(s) -
F. R. Pérez,
Andrés Felipe Loaiza-Betancur,
Alejandra García,
Aura S. Merlano,
Ángel Salazar
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1219/1/012002
Subject(s) - materials science , graphene , dielectric spectroscopy , oxide , corrosion , diglycidyl ether , hybrid material , coating , chemical engineering , nanomaterials , carbon steel , electrochemistry , composite material , epoxy , metallurgy , bisphenol a , electrode , nanotechnology , chemistry , engineering
In this work, the synthesis of reduced graphene oxide (rGO) and its incorporation into a hybrid organic-inorganic matrix is reported. The hybrid matrix was obtained from Bisphenol A diglycidyl Ether (DGEBA) and tetraethylorthosilicate (TEOS) as the organic and inorganic phase, respectively, up to have an optimal hybrid matrix (HYBRID) having both good adherence on steel surface and good microhardness. In addition, the rGO was added to HYBRID (HGO). DGEBA, HYBRID and HGO were used as coatings on the surface of different 1018 carbon steel coupons. The coupons were immersed in a H 2 SO 4 solution, then electrochemistry impedance spectroscopy (EIS) measurements were carried out. The corrosion current density, the corrosion rates, and the inhibition efficiency were estimated. The results show that the addition of rGO to HYBRID contributes to obtain a coating with good corrosion protective properties.