Effects of Arctostaphylos uva-ursi extract as green corrosion inhibitor for Cu10Ni alloy in 1 M HNO3

Y. M. Abdallah; Hala M. Hassan; K. Shalabi; A. S. Fouda

doi:10.1016/s1452-3981(23)08153-1

Effects of Arctostaphylos uva-ursi extract as green corrosion inhibitor for Cu10Ni alloy in 1 M HNO₃

Y. M. Abdallah
, Hala M. Hassan
, K. Shalabi
, A. S. Fouda

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

21 Scopus citations

Abstract

The corrosion inhibition of Cu10Ni alloy by Arctostaphylos uva-ursi extract (AUUE) in 1 M HNO₃ has been investigated by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) and scanning electron microscope (SEM) techniques. Potentiodynamic polarization indicated that AUUE acted as mixed type inhibitor but mainly cathodic. The calculated adsorption thermodynamic parameters indicated that the adsorption was a spontaneous, exothermic process accompanied by an increase in entropy and obey Langmuir adsorption. The inhibition efficiency increases with increasing the concentration of the inhibitor and decreases with increasing the temperature. The SEM results showed the formation of a protective film on the alloy surface in the presence of AUUE. The results obtained from different electrochemical techniques were in good agreement.

Original language	English
Pages (from-to)	5073-5091
Number of pages	19
Journal	International Journal of Electrochemical Science
Volume	9
Issue number	9
DOIs	https://doi.org/10.1016/s1452-3981(23)08153-1
State	Published - Sep 2014
Externally published	Yes

Keywords

Arctostaphylos uva-ursi extract
Cu10Ni alloy
EFM
EIS
SEM

Access to Document

10.1016/s1452-3981(23)08153-1

Cite this

@article{87a67c63bdaa47e89a9efb529e3c5cbe,

title = "Effects of Arctostaphylos uva-ursi extract as green corrosion inhibitor for Cu10Ni alloy in 1 M HNO3",

abstract = "The corrosion inhibition of Cu10Ni alloy by Arctostaphylos uva-ursi extract (AUUE) in 1 M HNO3 has been investigated by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) and scanning electron microscope (SEM) techniques. Potentiodynamic polarization indicated that AUUE acted as mixed type inhibitor but mainly cathodic. The calculated adsorption thermodynamic parameters indicated that the adsorption was a spontaneous, exothermic process accompanied by an increase in entropy and obey Langmuir adsorption. The inhibition efficiency increases with increasing the concentration of the inhibitor and decreases with increasing the temperature. The SEM results showed the formation of a protective film on the alloy surface in the presence of AUUE. The results obtained from different electrochemical techniques were in good agreement.",

keywords = "Arctostaphylos uva-ursi extract, Cu10Ni alloy, EFM, EIS, SEM",

author = "Abdallah, \{Y. M.\} and Hassan, \{Hala M.\} and K. Shalabi and Fouda, \{A. S.\}",

year = "2014",

month = sep,

doi = "10.1016/s1452-3981(23)08153-1",

language = "English",

volume = "9",

pages = "5073--5091",

journal = "International Journal of Electrochemical Science",

issn = "1452-3981",

publisher = "Elsevier B.V.",

number = "9",

}

TY - JOUR

T1 - Effects of Arctostaphylos uva-ursi extract as green corrosion inhibitor for Cu10Ni alloy in 1 M HNO3

AU - Abdallah, Y. M.

AU - Hassan, Hala M.

AU - Shalabi, K.

AU - Fouda, A. S.

PY - 2014/9

Y1 - 2014/9

N2 - The corrosion inhibition of Cu10Ni alloy by Arctostaphylos uva-ursi extract (AUUE) in 1 M HNO3 has been investigated by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) and scanning electron microscope (SEM) techniques. Potentiodynamic polarization indicated that AUUE acted as mixed type inhibitor but mainly cathodic. The calculated adsorption thermodynamic parameters indicated that the adsorption was a spontaneous, exothermic process accompanied by an increase in entropy and obey Langmuir adsorption. The inhibition efficiency increases with increasing the concentration of the inhibitor and decreases with increasing the temperature. The SEM results showed the formation of a protective film on the alloy surface in the presence of AUUE. The results obtained from different electrochemical techniques were in good agreement.

AB - The corrosion inhibition of Cu10Ni alloy by Arctostaphylos uva-ursi extract (AUUE) in 1 M HNO3 has been investigated by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) and scanning electron microscope (SEM) techniques. Potentiodynamic polarization indicated that AUUE acted as mixed type inhibitor but mainly cathodic. The calculated adsorption thermodynamic parameters indicated that the adsorption was a spontaneous, exothermic process accompanied by an increase in entropy and obey Langmuir adsorption. The inhibition efficiency increases with increasing the concentration of the inhibitor and decreases with increasing the temperature. The SEM results showed the formation of a protective film on the alloy surface in the presence of AUUE. The results obtained from different electrochemical techniques were in good agreement.

KW - Arctostaphylos uva-ursi extract

KW - Cu10Ni alloy

KW - EFM

KW - EIS

KW - SEM

UR - https://www.scopus.com/pages/publications/84904621166

U2 - 10.1016/s1452-3981(23)08153-1

DO - 10.1016/s1452-3981(23)08153-1

M3 - Article

AN - SCOPUS:84904621166

SN - 1452-3981

VL - 9

SP - 5073

EP - 5091

JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

IS - 9

ER -

Effects of Arctostaphylos uva-ursi extract as green corrosion inhibitor for Cu10Ni alloy in 1 M HNO₃

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this