Corrosion inhibition of nickel in H2SO4 solution by alanine

An electrochemical impedance spectroscopy and potentiodynamic polarization study of the effect of unidirectional roughness on the corrosion of nickel

“…For all G60 to G1200 samples, the R a values signifi cantly increased after corrosion. This is in agreement with the fi ndings of Hamed et al [16] for the corrosion of Ni in H 2 SO 4 solution. The changes in roughness for the patterned samples were relatively quite small and confi rm the SEM observations ( Fig.…”

Experimental and DFT studies of porous carbon covalently functionalized by polyaniline as a corrosion inhibition barrier on nickel-based alloys in acidic media

“…18 Polovo et al reported C-4 nickel alloy corrosion resistance in molten salt environment at high temperatures and the results suggested that in C-4 alloy grain boundaries were not affected due to the absence of binary metal impurities. 19 Amino acid as a green corrosion inhibitor on nickel alloy in 1 M H 2 SO 4 acidic medium, increase with concentration of inhibitor molecules, the inhibition efficiency is increased due to the physisorption of inhibitor molecules by E. Hamed et al 20 Tang et al reported the corrosion inhibition efficiency in 2 M H 2 SO 4 medium of the mild steel coated with electrochemically polymerized polyaniline. When the polymerization lm thickness on the steel surface increased, the inhibition efficiency increased up to 95% due to conductivity of polyaniline emeraldine salt.…”

Breakdown of passivity of nickel electrode in sulfuric acid and its inhibition by pyridinone derivatives using the galvanostatic polarization technique

“…The use of organic compounds containing nitrogen, oxygen or sulfur in their chemical structure to inhibit the acidic and pitting corrosion of nickel has been studied [7][8][9][10][11][12][13][14][15][16][17][18].…”