A comparative study of the efficiency of some organic inhibitors for the corrosion of copper in aqueous chloride media using electrochemical and surface enhanced Raman scattering techniques

The roles of mercapto, benzene and methyl groups in the corrosion inhibition of imidazoles on copper: I. Experimental characterization

“…The presence of a high chlorine concentration in the layer was related to weak efficiency of inhibition [77]. The centre of the Cu 2p 3/2 peak of CuCl 2 has been reported at binding energies between 934.0 eV and 935.6 eV [76], which agrees well with the position of a cupric peak at 934.7-935.2 eV (Fig.…”

Effect of 1-pyrrolidine dithiocarbamate on the galvanic coupling resistance of intermetallics – Aluminum matrix during corrosion of AA 2024-T3 in a dilute NaCl

“…The presence of a significant quantity of Cu ($4%), as alloying element in AA 2024-T3 alloy, plays a considerable role in the localized corrosion process of this alloy in chloride media [11][12][13][14][15][16][17]. Therefore, it is important to assess and compare the electrochemical behavior of AA 2024-T3 alloy to those of pure Cu and pure Al in 0.2 g L À1 NaCl.…”

“…Hence, the use of compounds that generally inhibit the corrosion of Cu appears to be a promising approach for corrosion inhibition of the alloy. Several compounds have been identified as potential inhibitors for the alloy by extensive studies on the corrosion inhibition of copper [15][16][17][18].…”

Surface enhanced Raman scattering (SERS) of 1-hydroxybenzotriazole adsorbed on a copper electrode surface

“…Vibrational spectroscopy (infrared reflection-absorption spectroscopy -IRRAS and surface-enhanced Raman scattering -SERS) plays a key role in elucidating the structure of molecular species that exist at the copper substrate under given conditions. Hence, several reports on SERS of benzotriazole on the Cu surface have been published [1][2][3][4][5][6][7][8][9]. They allowed the adsorption geometry of BTAH to be determined and gave evidence of dissociation of chemisorbed molecules and formation of a [Cu-BTA] n polymeric network at sufficiently positive electrode potentials.…”