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dc.contributor.authorJannathul Firdhouse, M-
dc.contributor.authorNalini, D-
dc.date.accessioned2023-11-09T06:15:34Z-
dc.date.available2023-11-09T06:15:34Z-
dc.date.issued2013-
dc.identifier.urihttps://www.hindawi.com/journals/jchem/2013/835365/-
dc.description.abstractThe inhibition effect of -phenyl-,-dihydrospiro[indole-3,-pyrazol]-2(1H)-one (SPAH) on mild steel corrosion in 1 M HCl and 0.5 M H2SO4 has been studied by weight loss, effect of temperature, electrochemical techniques, and quantum chemical studies. The inhibition efficiency increases with increasing concentration of inhibitor but decreases with increase in temperature. The adsorption of inhibitor on mild steel surface has been found to obey Langmuir and Temkin’s adsorption isotherm. Potentiostatic polarization results revealed that SPAH acts as mixed type inhibitor. The values of activation energy (), free energy of adsorption (), enthalpy of adsorption (), and entropy of adsorption () were calculated. Surface analysis (SEM) was also carried out to establish the mechanism of inhibitor on mild steel corrosion in acid medium. Quantum chemical studies using DFT were employed to explain the experimental results obtained in this study and to further give insight into the inhibition action of SPAH on the mild steel surface.en_US
dc.language.isoen_USen_US
dc.publisherHindawien_US
dc.titleCORROSION INHIBITION OF MILD STEEL IN ACIDIC MEDIA BY 5′-PHENYL-2′,4′-DIHYDROSPIRO[INDOLE-3,3′-PYRAZOL]-2(1H)-ONE (Article)en_US
dc.typeArticleen_US
Appears in Collections:l) 2013-Scopus Open Access (PDF)



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