Adsorption, Thermodynamic, and Experimental Studies of Corrosion Inhibitor of Tin in 0.2 M Maleic Acid by Hydrogen Phosphate Ions (HPO 4  2− ) | Zendy

Ait Addi Brahim | Zendy; Ait Addi Abdelaziz | Zendy; Shaban Abdul | Zendy; Ait Addi ElHabib | Zendy; Hamdani Mohamed | Zendy

Premium

Adsorption, Thermodynamic, and Experimental Studies of Corrosion Inhibitor of Tin in 0.2 M Maleic Acid by Hydrogen Phosphate Ions (HPO 4 2− )

Author(s) -

Ait Addi Brahim,

Ait Addi Abdelaziz,

Shaban Abdul,

Ait Addi ElHabib,

Hamdani Mohamed

Publication year - 2021

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.202060406

Subject(s) - adsorption , tin , corrosion , langmuir adsorption model , inorganic chemistry , electrochemistry , chemistry , polarization (electrochemistry) , corrosion inhibitor , ion , phosphate , hydrogen , maleic acid , nuclear chemistry , electrode , organic chemistry , copolymer , polymer

The inhibition efficiency of H 2 PO 4 2− ions against tin corrosion in 0.2 M maleic acid is studied using electrochemical methods, surface analytical methods, and thermodynamic analysis. The potentiodynamic polarization plots showed the presence of an active/passive transition state of the tin electrode. The EIS measurements confirmed that the inhibition efficiency of H 2 PO 4 2− increased by increasing the concentration (η=81 % at C inh =2.10 −2 M) and decreased by rising the temperature. The polarization tests demonstrated that the inhibitor performs as a cathodic‐type. The adsorption of the inhibitor was spontaneous and followed the Langmuir adsorption isotherm. A model of the inhibition mechanism was suggested.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research