Abstract

Now-a-days, use of non-chromium compounds as corrosion inhibitors in anti-corrosive paints for metals is taking center stage of research to protect environment from hazardous compounds. The present study deals with the synthesis of chromium free vanadium doped titanium dioxide and their inhibition efficiency towards corrosion prevention of reinforced bar (rebar) in chloride contaminated pore solution. The doping efficiency of the xV-TiO2 and subsequently their inhibition characteristics have been analyzed with the help of electrochemical measurements. Doping of about 2% V enables to achieve an excellent inhibition efficiency of ∼90%. The formation of protective nanometric adsorptive layer on the rebar till an optimal content of the inhibitor provides corrosion protection against chloride environment.

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