Nickel Corrosion Inhibition in Sulfuric Acid— Electrochemical Studies, Morphologies, and Theoretical Approach

The inhibition performance of three selected dihydrazide derivatives, namely, malonic acid (MAD), succinic acid (SAD), and adipic acid (AAD) dihydrazide, was tested in relation to nickel corrosion in 1.0 M sulfuric acid (H2SO4) solution. Electrochemical methods (Tafel polarization, linear polarizati...

Full description

Saved in:
Bibliographic Details
Published in:Corrosion (Houston, Tex.) Tex.), 2012-08, Vol.68 (8), p.699-712
Main Authors: AMIN, M. A, SHOKRY, H, MABROUK, E. M
Format: Article
Language:English
Subjects:
Additives
Adipic acid
Adsorption
Analytical methods
Applied sciences
Atoms & subatomic particles
Computer applications
Corrosion
Corrosion environments
Corrosion inhibitors
Corrosion potential
Corrosion prevention
Derivatives
Efficiency
Electrochemical impedance spectroscopy
Electrochemistry
Electrode polarization
Electrodes
Electron microscopy
Exact sciences and technology
Inhibition
Inhibitors
Linear polarization
Metals. Metallurgy
Methods
Morphology
Nickel
Optimization
Polarization
Scanning electron microscopy
Simulation
Software
Spectroscopy
Studies
Succinic acid
Sulfuric acid
Sulphuric acid
Surface chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The inhibition performance of three selected dihydrazide derivatives, namely, malonic acid (MAD), succinic acid (SAD), and adipic acid (AAD) dihydrazide, was tested in relation to nickel corrosion in 1.0 M sulfuric acid (H2SO4) solution. Electrochemical methods (Tafel polarization, linear polarization resistance [LPR], and electrochemical impedance spectroscopy [EIS]) were used, complemented with scanning electron microscopy/energy-dispersive x-ray (SEM/EDX) examinations. Computational studies were also used to confirm experimental findings and to optimize the adsorption structures of dihydrazide derivatives. Results showed that the three tested dihydrazides inhibited Ni corrosion (mixed-type inhibitors) to an extent, depending on the type and concentration of the introduced inhibitor. SEM studies revealed that the corroded areas on the surface were decreased in the presence of additives to an extent, depending on the type and concentration of the tested inhibitor. Results obtained from electrochemical measurements are in good agreement with theoretical studies.
ISSN:0010-9312
1938-159X
DOI:10.5006/0508