Journal of Applied Electrochemistry, Vol.34, No.7, 697-704, 2004
Piperidines as corrosion inhibitors for iron in hydrochloric acid
The objective of this work is to provide additional insight on the influence of substituents on heterocyclic piperidine as acid corrosion inhibitors for iron. This series include piperidine and six derivatives. The inhibiting properties of piperidine and these derivatives were investigated in 1 M HCl by potentiodynamic polarization (dc) and electrochemical impedance spectroscopy measurements, and inhibition was found to increases as 26dp<35dp<2mp<3mp