Electrochemical and theoretical investigation of the inhibitory effect of two Schiff bases of benzaldehyde for the corrosion of aluminium in hydrochloric acid

Evaluation of Inhibitive Performance of Acidic Extract of Eichornia Crassipeson Corrosion of Low Carbon Steel in 1M Sulphuric Acid Solution

“…This means that the activation energy for the system was increased by the extract. This agrees with the reports of Obi-Egbedi, Obot and Umoren (2012), Ulaeto et al (2012), Al-Haj-Ali et al (2014 and Naik et al (2016) for physisorption inhibition where the Ea values for the inhibited were greater than the uninhibited. Labrabi et al (2005) and Khadraoui et al (2015) also attributed higher activation energy in the presence of inhibitor compared with its absence to physisorption inhibition, while the reverse was associated with chemisorption.…”

“…The organic inhibitors can be synthetic or natural. Organic inhibitors have been established to be the best as they are biodegradable, nontoxic and environmentally friendly (Naik et al, 2016).…”

“…Organic compounds contain functional groups in their molecular structures that contain O, N, S, P atoms and multiple bonds that inhibit corrosion by displacing the water molecules on the metal and forming barrier against corrosion (Rani and Basu, 2012;Naik et al, 2016). Organic compounds can be expensive sometimes putting limitations to their applications.…”

Experimental Evaluation for the Inhibition of Carbon Steel Corrosion in Salt and Acid Media by New Derivative of Quinolin-2-One

“…Quinoline derivatives in general are known to have a variety of pharmacological and biological activities, such as immune depressant activity, antimalarial activity and antitubecular activity [7][8]. Many reports have been presented in literature on the use of quinoline and some of its derivatives as corrosion inhibitors in different media [9][10][11][12][13]. In this search we focused on the Quinolin-2-one derivative, a heterocyclic entity and pharmacologically important molecule.…”

Experimental and theoretical insights into the corrosion inhibition activity of novel Schiff bases for aluminum alloy in acidic medium

“…Thus, inhibition efficiency mainly depends upon structural frameworks including functional groups, donor atom electron density and electronic structure of the adsorbed molecules and substrates. [15][16][17][18] Various Schiff bases have been reported to prevent degradation of metals and alloys such as pure aluminum and its alloys, [19][20][21][22][23] copper, 24 iron and mild steel [25][26][27] in acidic environments.…”