Full Text:   <2924>

CLC number: TU528.042

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 0000-00-00

Cited: 1

Clicked: 6467

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
Open peer comments

Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.8 P.1447-1452

http://doi.org/10.1631/jzus.2006.A1447


Electrochemical study on semiconductive properties of the passive film on rebar in concrete


Author(s):  ZHANG Yun-lian, LI Qi-ling

Affiliation(s):  School of Architecture and Civil Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, China; more

Corresponding email(s):   qinger0302@yahoo.com.cn

Key Words:  Mott-Schottky (M-S) Plot, Rebar electrode, Passive film, Simulated concrete pore solution, Mineral admixture


ZHANG Yun-lian, LI Qi-ling. Electrochemical study on semiconductive properties of the passive film on rebar in concrete[J]. Journal of Zhejiang University Science A, 2006, 7(8): 1447-1452.

@article{title="Electrochemical study on semiconductive properties of the passive film on rebar in concrete",
author="ZHANG Yun-lian, LI Qi-ling",
journal="Journal of Zhejiang University Science A",
volume="7",
number="8",
pages="1447-1452",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.A1447"
}

%0 Journal Article
%T Electrochemical study on semiconductive properties of the passive film on rebar in concrete
%A ZHANG Yun-lian
%A LI Qi-ling
%J Journal of Zhejiang University SCIENCE A
%V 7
%N 8
%P 1447-1452
%@ 1673-565X
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A1447

TY - JOUR
T1 - Electrochemical study on semiconductive properties of the passive film on rebar in concrete
A1 - ZHANG Yun-lian
A1 - LI Qi-ling
J0 - Journal of Zhejiang University Science A
VL - 7
IS - 8
SP - 1447
EP - 1452
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.A1447


Abstract: 
The electrochemical behavior of metallic passive film on rebar in concrete is characterized by its semiconductive nature. The charge distribution at the interface between a semiconductor and an electrolyte is often determined by measuring the capacitance of the space-charge layer (CSC) as a function of the electrode potential (E). When the space charge-layer serves as the depletion layer, the relation of Csc-2 vs E resembles a Mott-Schottky plot (M-S plot). The semiconductive properties of the passive film on rebar in concrete were analyzed with M-S plots to study the effect of chloride ions and mineral admixtures on rebar passive films. Some rebar electrodes were immersed in simulated concrete pore solutions, while others were embedded in concrete with/without mineral admixtures. In saturated Ca(OH)2 solutions, the relation of Csc-2-E of rebar electrodes shows linear Mott-Schottky relationship indicating that the passive film on rebar is a highly disordered n-type semiconductor, with donor density (ND) in the order of 1026 m−3. After adding chloride ions (Cl wt%<0.2%) in system solutions, the M-S plot slopes significantly decreased and ND increased, suggesting that chloride ion will cause passive film corrosion and breakdown. The M-S plots of the passive film on rebar electrodes embedded in concrete were similar to those immersed in simulated system solution. However, ND of those in concrete with mineral admixtures tended to be a little smaller, indicating that introducing proper quantity admixtures into concrete could make the rebar passive film have a thicker space-charge layer and therefore a thicker passive film layer.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Baek, W.C., Kang, T., Sohn, H.J., Kho, Y.T., 2001. In situ surface enhanced Raman spectroscopic study on the effect of dissolved oxygen on the corrosion film on low carbon steel in 0.01 M NaCl solution. Electrochim. Acta, 46(15):2321-2325.

[2] Cai, S.Q., Li, W.S., Luo, J.L., 2003. Structure and properties of passive films formed on iron in aqueous environments. Chinese Soc. Corros. Prot., 23(3):187-192 (in Chinese).

[3] Cheng, Y.F., Luo, J.L., 1999. Passivity and pitting of carbon steel in chromate solutions. Electrochim. Acta, 44(26):4795-4804.

[4] Cheng, Y.F., Luo, J.L., 2000. A comparison of the pitting susceptibility and semiconducting properties of the passive films on carbon steel in chromate and bicarbonate solutions. Appl. Surf. Sci., 167(1-2):113-121.

[5] Cheng, Y.F., Yang, C., Luo, J.L., 2002. Determination of the diffusivity of point defects in passive films on carbon steel. Thin Solid Films, 416(1-2):169-173.

[6] Dean, M.H., Stimming, U., 1987. Capacity of semiconductor electrodes with multiple bulk electronic states. J. Electroanal. Chem., 228(1-2):135-151.

[7] Dean, M.H., Stimming, U., 1989. The electronic properties of disordered passive films. Corros. Sci., 29(2-3):199-211.

[8] Du, R.G., Hu, R.G., Hu R., Feng, Z.D., Huang, R.S., Tan, J.G., Lin, C.J., 2001. The effects of some inorganic corrosion inhibitor on reinforcing steel in concrete. Journal of Xiamen University (Natural Science), 40(4):908-913 (in Chinese).

[9] Ge, H.H., Zhou, G.D., Wu, W.Q., 2003. Passivation model of 316 stainless steel in simulated cooling water and the effect of sulfide on the passive film. Appl. Surf. Sci., 211(4):321-334.

[10] Hakiki, N.E., Cunha Belo, M.D., Simoes, A.M.P., 1998. Semiconducting properties of passive films formed on stainless steels. J. Electrochem. Soc., 145(11):3821-3829.

[11] Hu, R.G., Huang, R.S., Du, R.G., Lin, C.J., 2003. Study on corrosion behavior of reinforcing steel in concrete subjected to chloride contamination by EIS. Acta Phys. Chim. Sin., 19(1):46-50 (in Chinese).

[12] Knauth, P., Massiani, Y., 1998. Mott-Schottky analysis of polycrystalline copper (I) bromide in aqueous electrolytes. J. Electroanal. Chem., 442(1-2):229-234.

[13] Li, W.S., Luo, J.L., 1999. Electric properties and pitting susceptibility of passive films formed on iron in chromate solution. Electrochem. Commun., 1(8):349-353.

[14] Li, Y.J., Wu, B., Zeng, X.P., Liu, Y.F., Ni, Y.M., Zhou, G.D., Ge, H.H., 2002. The voltammetry-photocurrent response study of passivation of carbon steel in slightly alkaline solutions containing the corrosion inhibitor phosphor-polymaleic acid-ZnSO4. Thin Solid Films, 45(1-2):153-161.

[15] Montemor, M.F., Simoes, A.M.P., Salta, M.M., 2000. Effect of fly ash on concrete reinforcement corrosion studied by EIS. Cement & Concrete Composites, 22(3):175-185.

[16] Montemor, M.F., Cunha, M.P., Ferreira, M.G., Simoes, A.M., 2002. Corrosion behaviour of rebars in fly ash mortar exposed to carbon dioxide and chlorides. Cement & Concrete Composites, 24(1):45-53.

[17] Moreno, M., Morris, W., Alvarez, M.G., Duffo, G.S., 2004. Corrosion of reinforcing steel in simulated concrete pore solutions effect of carbonation and chloride content. Corros. Sci., 46(11):2681-2699.

[18] Morrison, S.R., 1981. Electrochemistry at Semiconductor and Oxidized Metal Electrodes. Plenum Press, New York, p.120-130.

[19] Saremi, M., Mahallati, E., 2002. A study on chloride-induced depassivation of mild steel in simulated concrete pore solution. Cem. Concr. Res., 32(12):1915-1921.

[20] Sukhotin, A.M., Grilikhes, M.S., Lisovaya, E.V., 1989. The influence of passivation on the kinetics of the dissolution of iron—I. Outer layer of the passivating film as a heavy doped thin semiconductor and M-S equation. Electrochim. Acta, 34(2):109-112.

[21] Tuerkmen, I., Gavgalı, M., 2003. Influence of mineral admixtures on the some properties and corrosion of steel embedded in sodium sulfate solution of concrete. Materials Letters, 57(21):3222-3233.

[22] Tuerkmen, I., Gavgalı, M., Guel, R., 2003. Influence of mineral admixtures on the mechanical properties and corrosion of steel embedded in high strength concrete. Materials Letters, 57:2037-2043.

[23] Veleva, L., Alpuche-Aviles, M.A., Graves-Brook, M.K., Wipf, D.O., 2002. Comparative cyclic voltammetry and surface analysis of passive films grown on stainless steel 316 in concrete pore model solutions. J. Electroanal. Chem., 537(1-2):85-93.

[24] Wang, Y., Shi, Y.X., Wei, B.M., Lin, C.J., 1998a. A XPS study of rebar passive film and effect of chloride ions on it. Chinese Soc. Corros. Prot., 18(2):107-112 (in Chinese).

[25] Wang, Y., Shi, Y.X., Wei, B.M., Yang, Y., Chen, X.G., Chu, W., Lin, Z.G., 1998b. Study on the effect of inhibitors on passive film of rebar by photoelectrochemical method. Corros. Sci. Prot. Tech., 10(4):187-191 (in Chinese).

[26] Yang, C.C., Wang, L.C., 2004. The diffusion characteristic of concrete with mineral admixtures between salt ponding test and accelerated chloride migration test. Materials Chemistry and Physics, 85(2-3):266-272.

[27] Zemajtis, J., 1998. Modeling the Time to Corrosion Initiation for Concretes with Mineral Admixtures and/or Corrosion Inhibitors in Chloride-Laden Environments. Ph.D Dissertation, Virginia State University, Blacksburg, Virginia.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - 2024 Journal of Zhejiang University-SCIENCE