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    Rhizophora Apiculata As Eco-Friendly Inhibitor Against Mild Steel Corrosion in 1 M HCL

    Access Status
    Fulltext not available
    Authors
    Asaad, M.
    Ismail, Mohamed
    Raja, P.
    Khalid, N.
    Date
    2017
    Type
    Journal Article
    
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    Citation
    Asaad, M. and Ismail, M. and Raja, P. and Khalid, N. 2017. Rhizophora Apiculata As Eco-Friendly Inhibitor Against Mild Steel Corrosion in 1 M HCL. Surface Review and Letters. 24 (S1): Article ID 1850013.
    Source Title
    Surface Review and Letters
    DOI
    10.1142/S0218625X18500130
    ISSN
    0218-625X
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/72618
    Collection
    • Curtin Research Publications
    Abstract

    The inhibitive characteristics of aqueous extracts from mangrove (Rhizophora apiculata) bark and leaf on the corrosion of mild steel (MS) coupon in 1 M HCl were examined by means of the gravimetric measurement (weight loss), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. The MS surface morphologie were investigated using field emission scanning electron microscopy (FESEM) with Energy Dispersive X-Ray Analysis (EDX) at 120h in the presence and absence of green inhibitors in corrosive medium. Respective inhibition efficiencies of 68.1% and 59.0% were obtained when exposed to 10% v/v Rhizophora apiculata solution for 72h. Examination of the adsorption behavior of the solutions indicated the Langmuir isotherm model as being the most likely relevant adsorption mechanism. In addition, polarization measurements showed that both bark and leaves extract inhibitors act via mixed type inhibition.

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