IMR OpenIR
Corrosion Inhibition of Q235 Mild Steel in 0.5 M H2SO4 Solution by Phytic Acid and Synergistic Iodide Additives
M. A. Chidiebere; E. E. Oguzie; L. Liu; Y. Li; F. H. Wang
2014
Source PublicationIndustrial & Engineering Chemistry Research
ISSN0888-5885
Volume53Issue:18Pages:7670-7679
AbstractThe inhibition properties of phytic acid (PA) on Q235 mild steel corrosion in 0.5 M H2SO4 was estimated using electrochemical techniques. Polarization results revealed PA to be a mixed-type inhibitor in 0.5 M H2SO4, with a more pronounced cathodic effect, while impedance results indicate adsorption of the PA species on the steel surface. The values of the synergistic factor with KI were higher than unity indicating that both additives act cooperatively to improve inhibition performance. The adsorption of PA followed the Langmuir adsorption isotherm. The mechanism of chemical adsorption is proposed on the basis of the trend of inhibition efficiency with temperature and the calculated values of the activation energy (E-a). Scanning electron microscopy, atomic force microscopy, and Fourier transform infrared spectroscopy studies revealed the formation of a protective film adsorbed on a mild steel surface. Quantum chemical calculations were used to confirm the ability of phytic acid to adsorb on a steel surface.
description.department[chidiebere, maduabuchi a. ; liu, li ; li, ying ; wang, fuhui] chinese acad sci, inst met res, shenyang 110016, peoples r china. [chidiebere, maduabuchi a. ; oguzie, emeka e.] fed univ technol owerri, dept chem, electrochem & mat sci res lab, owerri, nigeria. ; li, y (reprint author), chinese acad sci, inst met res, 62 wencui rd, shenyang 110016, peoples r china. ; liying@imr.ac.cn
KeywordPhosphoric-acid Sulfuric-acid Adsorption Behavior Aluminum Corrosion Carbon-steel Ions Extract Hcl
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72835
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
M. A. Chidiebere,E. E. Oguzie,L. Liu,et al. Corrosion Inhibition of Q235 Mild Steel in 0.5 M H2SO4 Solution by Phytic Acid and Synergistic Iodide Additives[J]. Industrial & Engineering Chemistry Research,2014,53(18):7670-7679.
APA M. A. Chidiebere,E. E. Oguzie,L. Liu,Y. Li,&F. H. Wang.(2014).Corrosion Inhibition of Q235 Mild Steel in 0.5 M H2SO4 Solution by Phytic Acid and Synergistic Iodide Additives.Industrial & Engineering Chemistry Research,53(18),7670-7679.
MLA M. A. Chidiebere,et al."Corrosion Inhibition of Q235 Mild Steel in 0.5 M H2SO4 Solution by Phytic Acid and Synergistic Iodide Additives".Industrial & Engineering Chemistry Research 53.18(2014):7670-7679.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[M. A. Chidiebere]'s Articles
[E. E. Oguzie]'s Articles
[L. Liu]'s Articles
Baidu academic
Similar articles in Baidu academic
[M. A. Chidiebere]'s Articles
[E. E. Oguzie]'s Articles
[L. Liu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[M. A. Chidiebere]'s Articles
[E. E. Oguzie]'s Articles
[L. Liu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.