Search results for: Nnabuk O. Eddy

Items from 1 to 6 out of 6 results

article

Theoretical and experimental studies on the corrosion inhibition potentials of some purines for aluminum in 0.1M HCl

Nnabuk O. Eddy, H. Momoh-Yahaya, Emeka E. Oguzie

Journal of Advanced Research > 2015 > 6 > 2 > 203-217

Experimental aspect of the corrosion inhibition potential of adenine (AD), guanine (GU) and, hypoxanthine (HYP) was carried out using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods while the theoretical aspect of the work was carried out by calculations of semi-empirical parameters (for AM1, MNDO, CNDO, PM3 and RM1 Hamiltonians), Fukui functions...

article

Experimental and theoretical studies on the inhibition potentials of some derivatives of cyclopenta‐1,3‐diene for the corrosion of mild steel in HCl solutions

Nnabuk O. Eddy, Benedict I. Ita

International Journal of Quantum Chemistry > 111 > 14 > 3456 - 3474

The inhibition of the corrosion of mild steel in HCl by some cyclopentadiene‐1,3‐diene derivatives, namely, 1‐(thiophen‐2‐yl)ethanone (2APT), 1‐(1H‐pyrrol‐2‐yl)ethanone (2AP), and (E)‐2‐(1‐hydrazonoethyl)‐1H‐pyrrole (2APH)), was studied experimentally using weight loss and hydrogen gas evolution measurements. The theoretical aspect was studied using the density functional theory and quantitative structure...

article

Experimental and theoretical studies on some amino acids and their potential activity as inhibitors for the corrosion of mild steel, part 2

Nnabuk O. Eddy

Journal of Advanced Research > 2011 > 2 > 1 > 35-47

Substituent constants and quantum chemical parameters were calculated from PM6, PM3, AM1, RM1 and MNDO. Hamiltonians were used to predict the corrosion inhibition potential of nine amino acids grouped under three skeletons. Skeleton I consisted of cysteine (CYS), serine (SER) and amino butyric acid (ABU). Those in skeleton II included threonine (THR), alanine (ALA) and valine (VAL) while those in...

article

QSAR, DFT and quantum chemical studies on the inhibition potentials of some carbozones for the corrosion of mild steel in HCl

Nnabuk O. Eddy, Benedict I. Ita

Journal of Molecular Modeling > 2011 > 17 > 2 > 359-376

Experimental aspects of the inhibition of the corrosion of mild steel in HCl solutions by some carbozones were studied using gravimetric, thermometric and gasometric methods, while a theoretical study was carried out using density functional theory, a quantitative structure–activity relation, and quantum chemical principles. The results obtained indicated that the studied carbozones are good adsorption...

article

Adsorption, synergistic inhibitive effect and quantum chemical studies of ampicillin (AMP) and halides for the corrosion of mild steel in H₂SO₄

Nnabuk O. Eddy, Eno E. Ebenso, Udo J. Ibok

Journal of Applied Electrochemistry > 2010 > 40 > 2 > 445-456

The corrosion inhibition of ampicillin (AMP) and its synergistic combination with halides (KI, KCl and KBr) for the corrosion of mild steel in H₂SO₄ have been investigated using gravimetric, gasometric, thermometric and infrared (IR) methods. The inhibition efficiencies of AMP for the corrosion of mild steel increased with increase in concentration but decreased with rise in temperature. The adsorption...

article

Quantum chemical study of the inhibition of the corrosion of mild steel in H₂SO₄ by some antibiotics

Nnabuk O. Eddy, Udo J. Ibok, Eno E. Ebenso, Ahmed Nemr, more

Journal of Molecular Modeling > 2009 > 15 > 9 > 1085-1092

The inhibition efficiency of some antibiotics against mild steel corrosion was studied using weight loss and quantum chemical techniques. Values of inhibition efficiency obtained from weight loss measurements correlated strongly with theoretical values obtained through semi empirical calculations. High correlation coefficients were also obtained between inhibition efficiency of the antibiotics and...

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Keywords

INHIBITION (5)
CORROSION (4)
QUANTUM CHEMICAL STUDIES (2)
ADSORPTION (1)
AMINO ACIDS (1)
AMPICILLIN (1)
B3LYP/6-31G (D,P) (1)
CARBOZONES (1)
COMPUTATIONAL CHEMISTRY STUDY (1)
CORROSION INHIBITION (1)
CORROSION OF MILD STEEL (1)
EXPERIMENTAL AND THEORETICAL STUDIES (1)
HALIDES (1)
PURINES (1)
QSAR (1)
QUANTUM CHEMICAL CALCULATION (1)
QUANTUM CHEMICAL STUDY (1)
SYNERGISM (1)
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Elsevier (2)
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Search results for: Nnabuk O. Eddy

Theoretical and experimental studies on the corrosion inhibition potentials of some purines for aluminum in 0.1M HCl

Experimental and theoretical studies on the inhibition potentials of some derivatives of cyclopenta‐1,3‐diene for the corrosion of mild steel in HCl solutions

Experimental and theoretical studies on some amino acids and their potential activity as inhibitors for the corrosion of mild steel, part 2

QSAR, DFT and quantum chemical studies on the inhibition potentials of some carbozones for the corrosion of mild steel in HCl

Adsorption, synergistic inhibitive effect and quantum chemical studies of ampicillin (AMP) and halides for the corrosion of mild steel in H2SO4

Quantum chemical study of the inhibition of the corrosion of mild steel in H2SO4 by some antibiotics

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Adsorption, synergistic inhibitive effect and quantum chemical studies of ampicillin (AMP) and halides for the corrosion of mild steel in H₂SO₄

Quantum chemical study of the inhibition of the corrosion of mild steel in H₂SO₄ by some antibiotics