Phosphites compound: Novel corrosion inhibitor for radioactive waste container (carbon steel) in simulated Callovo-Oxfordian (COx) groundwater

M. A. Deyab; R. Ouarsal; M. Lachkar; B. El Bali; R. Essehli

doi:10.1016/j.molliq.2016.04.027

Phosphites compound: Novel corrosion inhibitor for radioactive waste container (carbon steel) in simulated Callovo-Oxfordian (COx) groundwater

M. A. Deyab, R. Ouarsal, M. Lachkar, B. El Bali, R. Essehli

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

NaNi(H₂PO₃)₃·H₂O (NaNiPh) has been evaluated as a new inorganic inhibitor for radioactive waste container (carbon steel) corrosion in the Callovo-Oxfordian (COx) groundwater using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The experimental findings were supported using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) investigations. The value of the inhibition efficiency obtained from polarization curves is 96.7% at 100 ppm concentration, which is in good agreement with the data obtained from EIS (93.7%). Based on polarization data, NaNiPh can be classified as mixed inhibitor. The corrosion process is inhibited by physical adsorption of NaNiPh on carbon steel surface and the adsorption process follows Langmuir isotherm model. The activation parameters were calculated and corroborate the proposed inhibition mechanism.

Original language	English
Pages (from-to)	994-999
Number of pages	6
Journal	Journal of Molecular Liquids
Volume	219
DOIs	https://doi.org/10.1016/j.molliq.2016.04.027
State	Published - Jul 1 2016
Externally published	Yes

Funding

The authors would like to acknowledge the support and technical assistance of the CURI (Interface Regional University Center, University Sidi Mohammed Ben Abdellah, Fez, Morocco), and National Center for Scientific and Technical Research (CNRST-Rabat, Morocco).

Funders	Funder number
CNRST-Rabat
CURI
Interface Regional University
National Center for Scientific and Technical Research

Keywords

Carbon steel
Corrosion inhibitor
Electrochemical
Groundwater

Access to Document

10.1016/j.molliq.2016.04.027

Cite this

@article{1f37fb30b82a4727aaca6154c2479390,

title = "Phosphites compound: Novel corrosion inhibitor for radioactive waste container (carbon steel) in simulated Callovo-Oxfordian (COx) groundwater",

abstract = "NaNi(H2PO3)3·H2O (NaNiPh) has been evaluated as a new inorganic inhibitor for radioactive waste container (carbon steel) corrosion in the Callovo-Oxfordian (COx) groundwater using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The experimental findings were supported using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) investigations. The value of the inhibition efficiency obtained from polarization curves is 96.7% at 100 ppm concentration, which is in good agreement with the data obtained from EIS (93.7%). Based on polarization data, NaNiPh can be classified as mixed inhibitor. The corrosion process is inhibited by physical adsorption of NaNiPh on carbon steel surface and the adsorption process follows Langmuir isotherm model. The activation parameters were calculated and corroborate the proposed inhibition mechanism.",

keywords = "Carbon steel, Corrosion inhibitor, Electrochemical, Groundwater",

author = "Deyab, {M. A.} and R. Ouarsal and M. Lachkar and {El Bali}, B. and R. Essehli",

year = "2016",

month = jul,

day = "1",

doi = "10.1016/j.molliq.2016.04.027",

language = "English",

volume = "219",

pages = "994--999",

journal = "Journal of Molecular Liquids",

issn = "0167-7322",

publisher = "Elsevier",

}

TY - JOUR

T1 - Phosphites compound

T2 - Novel corrosion inhibitor for radioactive waste container (carbon steel) in simulated Callovo-Oxfordian (COx) groundwater

AU - Deyab, M. A.

AU - Ouarsal, R.

AU - Lachkar, M.

AU - El Bali, B.

AU - Essehli, R.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - NaNi(H2PO3)3·H2O (NaNiPh) has been evaluated as a new inorganic inhibitor for radioactive waste container (carbon steel) corrosion in the Callovo-Oxfordian (COx) groundwater using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The experimental findings were supported using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) investigations. The value of the inhibition efficiency obtained from polarization curves is 96.7% at 100 ppm concentration, which is in good agreement with the data obtained from EIS (93.7%). Based on polarization data, NaNiPh can be classified as mixed inhibitor. The corrosion process is inhibited by physical adsorption of NaNiPh on carbon steel surface and the adsorption process follows Langmuir isotherm model. The activation parameters were calculated and corroborate the proposed inhibition mechanism.

AB - NaNi(H2PO3)3·H2O (NaNiPh) has been evaluated as a new inorganic inhibitor for radioactive waste container (carbon steel) corrosion in the Callovo-Oxfordian (COx) groundwater using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The experimental findings were supported using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) investigations. The value of the inhibition efficiency obtained from polarization curves is 96.7% at 100 ppm concentration, which is in good agreement with the data obtained from EIS (93.7%). Based on polarization data, NaNiPh can be classified as mixed inhibitor. The corrosion process is inhibited by physical adsorption of NaNiPh on carbon steel surface and the adsorption process follows Langmuir isotherm model. The activation parameters were calculated and corroborate the proposed inhibition mechanism.

KW - Carbon steel

KW - Corrosion inhibitor

KW - Electrochemical

KW - Groundwater

UR - http://www.scopus.com/inward/record.url?scp=84964671836&partnerID=8YFLogxK

U2 - 10.1016/j.molliq.2016.04.027

DO - 10.1016/j.molliq.2016.04.027

M3 - Article

AN - SCOPUS:84964671836

SN - 0167-7322

VL - 219

SP - 994

EP - 999

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

ER -

Phosphites compound: Novel corrosion inhibitor for radioactive waste container (carbon steel) in simulated Callovo-Oxfordian (COx) groundwater

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this