RT info:eu-repo/semantics/article
T1 Multiscale electrochemical analysis of the corrosion control of bronze in simulated acid rain by horse-chestnut (Aesculus hippocastanum L.) extract as green inhibitor
A1 Souto, Ricardo Manuel
A1 Varvara, Simona
A1 Caniglia, Giada
A1 Izquierdo Pérez, Javier
A1 Bostan, Roxana
A1 Găină, Luiza
A1 Bobis, Otilia
K1 bronze
K1 EIS
K1 scanning electrochemical microscopy
K1 potentiodynamic polarization
K1 adsorption isotherms
K1 corrosion inhibition
AB Horse-chestnut ethanolic extract was tested as potential corrosion inhibitor of bronze insimulated acid rain. The extract was analysed by FTIR, GC-MS and HPLC-PDA, and its anticorrosion behaviour studied using a multiscale electrochemical approach (polarization curves,EIS and scanning electrochemical microscopy), along with SEM-EDS. 94% inhibition efficiencywas attained by developing a surface physisorbed film. A novel methodology for kineticevaluation of dynamic adsorption of inhibitive species on metal surface is proposed usingSECM, achieving good agreement with results from conventional electrochemical techniques.Excellent adsorption-desorption kinetic constants (ka = 0.102 s-1 mol-1 L; kd = 3.33x10-5 s-1) weredetermined
YR 2020
FD 2020
LK http://riull.ull.es/xmlui/handle/915/18950
UL http://riull.ull.es/xmlui/handle/915/18950
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 19-nov-2024