Journal
APPLIED SURFACE SCIENCE
Volume 276, Issue -, Pages 167-173Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2013.03.061
Keywords
Copper; Phytic acid; Raman; EIS; Electrochemical polarization
Categories
Funding
- National Natural Science Foundation of China [21073121]
- Key Laboratory of Resource Chemistry of Ministry of Education
Ask authors/readers for more resources
The adsorption of phytic acid (PA) on copper was investigated using electrochemical impedance spectroscopy (EIS), electrochemical polarization measurement and surface-enhanced Raman scattering (SERS) spectroscopy. Electrochemical results indicated that inhibition efficiency of PA film for copper from corrosion in 3 wt% NaCl solution was beyond 80% at an optimum self-assembly concentration of 0.1 mM for 6 h. Electrochemical polarization indicated that PA functioned as a cathodic inhibitor. In addition, Raman studies showed that PA adsorbed on the copper surface formed via P-O groups. Finally, the value of Delta G(ads) (-39.96 kJ mol(-1)) was close to -40 kJ mol(-1), suggesting that the adsorption of PA on the copper surface was the chemical adsorption. (C) 2013 Elsevier B. V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available