Experimental and theoretical insights into copper corrosion inhibition by protonated amino-acids
Amel Sedik, Samah Athmani, Adel Saoudi, Hana Ferkous, Nazih Ribouh, Djahida Lerari, Khaldoun Bacharı, Souad Djellali, Malika Berredjem, Ramazan Solmaz, Manawwer Alam, Byong‐Hun Jeon, Yacine Benguerba
Abstract
solution for short and long exposure times. Potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) were used. The EIS determined the potential for zero charges of copper (PZC) in the inhibitor solution. SEM and AFM have been used to study material surfaces. Energy-dispersive X-ray spectroscopy (EDS) was used to identify surface elemental composition. DFT and molecular dynamics simulations explored the interaction between protonated amino acids and aggressive media anions on a copper (111) surface.
Topics & Concepts
CopperDielectric spectroscopyPoint of zero chargeChemistryProtonationErosion corrosion of copper water tubesElectrochemistryCorrosionInorganic chemistryCysteineAmino acidSpectroscopyCorrosion inhibitorNuclear chemistryIonPhysical chemistryOrganic chemistryElectrodeBiochemistryEnzymePhysicsQuantum mechanicsCorrosion Behavior and InhibitionConcrete Corrosion and DurabilityHydrogen embrittlement and corrosion behaviors in metals