Corrosion inhibition studies of some plant extracts on aluminium in acidic medium

E. E. Ebenso; U. J. Ibok; U. J. Ekpe; S. Umoren; Ekerete Jackson; O. K. Abiola; N. C. Oforka; S. Martinez

Corrosion inhibition studies of some plant extracts on aluminium in acidic medium

E. E. Ebenso^*
, U. J. Ibok
, U. J. Ekpe
, S. Umoren
, Ekerete Jackson
, O. K. Abiola
, N. C. Oforka
, S. Martinez

^*Corresponding author for this work

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

70 Scopus citations

Abstract

The corrosion inhibition of aluminium in HC1 in the presence of Carica papaya (CP) and Azadirachta indica (AI) at 30-40°C was studied using the weight loss, thermometric and hydrogen evolution techniques. The inhibition efficiency (%I) increased with increase in concentration of the extracts and with increase in temperature. CP is a better inhibitor at 30°C whereas AI is better at 40°C. CP and AI were found to obey Freundlich, Temkin and Flory -Huggins adsorption isotherms at all concentrations studied at 40°C. Phenomenon of chemical adsorption is proposed from the obtained E_a, ΔG_ads and Q_ads values calculated.

Original language	English
Pages (from-to)	117-123
Number of pages	7
Journal	Transactions of the SAEST (Society for Advancement of Electrochemical Science and Technology)
Volume	39
Issue number	4
State	Published - Oct 2004
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Acidic medium
Adsorption
Aluminium
Azadirachta indica
Carica papaya
Corrosion inhibition
Kinetics
Thermodynamics

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

Cite this

@article{194312adc11e4276887775678e3cabf4,

title = "Corrosion inhibition studies of some plant extracts on aluminium in acidic medium",

abstract = "The corrosion inhibition of aluminium in HC1 in the presence of Carica papaya (CP) and Azadirachta indica (AI) at 30-40°C was studied using the weight loss, thermometric and hydrogen evolution techniques. The inhibition efficiency (\%I) increased with increase in concentration of the extracts and with increase in temperature. CP is a better inhibitor at 30°C whereas AI is better at 40°C. CP and AI were found to obey Freundlich, Temkin and Flory -Huggins adsorption isotherms at all concentrations studied at 40°C. Phenomenon of chemical adsorption is proposed from the obtained Ea, ΔGads and Qads values calculated.",

keywords = "Acidic medium, Adsorption, Aluminium, Azadirachta indica, Carica papaya, Corrosion inhibition, Kinetics, Thermodynamics",

author = "Ebenso, \{E. E.\} and Ibok, \{U. J.\} and Ekpe, \{U. J.\} and S. Umoren and Ekerete Jackson and Abiola, \{O. K.\} and Oforka, \{N. C.\} and S. Martinez",

year = "2004",

month = oct,

language = "English",

volume = "39",

pages = "117--123",

journal = "Transactions of the SAEST (Society for Advancement of Electrochemical Science and Technology)",

issn = "0036-0678",

publisher = "Society for Advancement of Electrochemical Science and Technology",

number = "4",

}

TY - JOUR

T1 - Corrosion inhibition studies of some plant extracts on aluminium in acidic medium

AU - Ebenso, E. E.

AU - Ibok, U. J.

AU - Ekpe, U. J.

AU - Umoren, S.

AU - Jackson, Ekerete

AU - Abiola, O. K.

AU - Oforka, N. C.

AU - Martinez, S.

PY - 2004/10

Y1 - 2004/10

N2 - The corrosion inhibition of aluminium in HC1 in the presence of Carica papaya (CP) and Azadirachta indica (AI) at 30-40°C was studied using the weight loss, thermometric and hydrogen evolution techniques. The inhibition efficiency (%I) increased with increase in concentration of the extracts and with increase in temperature. CP is a better inhibitor at 30°C whereas AI is better at 40°C. CP and AI were found to obey Freundlich, Temkin and Flory -Huggins adsorption isotherms at all concentrations studied at 40°C. Phenomenon of chemical adsorption is proposed from the obtained Ea, ΔGads and Qads values calculated.

AB - The corrosion inhibition of aluminium in HC1 in the presence of Carica papaya (CP) and Azadirachta indica (AI) at 30-40°C was studied using the weight loss, thermometric and hydrogen evolution techniques. The inhibition efficiency (%I) increased with increase in concentration of the extracts and with increase in temperature. CP is a better inhibitor at 30°C whereas AI is better at 40°C. CP and AI were found to obey Freundlich, Temkin and Flory -Huggins adsorption isotherms at all concentrations studied at 40°C. Phenomenon of chemical adsorption is proposed from the obtained Ea, ΔGads and Qads values calculated.

KW - Acidic medium

KW - Adsorption

KW - Aluminium

KW - Azadirachta indica

KW - Carica papaya

KW - Corrosion inhibition

KW - Kinetics

KW - Thermodynamics

UR - https://www.scopus.com/pages/publications/22944447107

M3 - Article

AN - SCOPUS:22944447107

SN - 0036-0678

VL - 39

SP - 117

EP - 123

JO - Transactions of the SAEST (Society for Advancement of Electrochemical Science and Technology)

JF - Transactions of the SAEST (Society for Advancement of Electrochemical Science and Technology)

IS - 4

ER -

Corrosion inhibition studies of some plant extracts on aluminium in acidic medium

Abstract

UN SDGs

Keywords

ASJC Scopus subject areas

Fingerprint

Cite this