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Pregled bibliografske jedinice broj: 1009036

Self Assembled Monolayers of Alkanethiol as Inhibitors against Copper Corrosion in Synthetic Acid Rain


Martinović, Ivana; Zlatić, Gloria; Pilić, Zora; Šušić, Lucija; Kowalska, Olga; Petrović, Danijel; Falak, Franjo; Mišković, Josip)
Self Assembled Monolayers of Alkanethiol as Inhibitors against Copper Corrosion in Synthetic Acid Rain // International Journal of Electrochemical Science, 14 (2019), 4; 4206-4215 doi:10.20964/2019.05.28 (međunarodna recenzija, članak, znanstveni)


Naslov
Self Assembled Monolayers of Alkanethiol as Inhibitors against Copper Corrosion in Synthetic Acid Rain

Autori
Martinović, Ivana ; Zlatić, Gloria ; Pilić, Zora ; Šušić, Lucija ; Kowalska, Olga ; Petrović, Danijel ; Falak, Franjo ; Mišković, Josip)

Izvornik
International Journal of Electrochemical Science (1452-3981) 14 (2019), 4; 4206-4215

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
(self-assembled monolayer ; copper ; acid rain ; electrochemical techniques)

Sažetak
The adsorption and corrosion inhibition of alkanethiols self-assembled monolayer on the copper surface in simulated acid rain were investigated by electrochemical techniques. Self-assembled monolayer (SAM) was formed by 1- octanethiol (OT), 1-dodecanethiol (DT) and 1- octadecanethiol (ODT) molecules on copper surface. The experimental results showed that inhibiton efficiency increases simultaneously with increase of concentration and chain length of thiols. At the concentration of 0.5 mmol L─1, 1-octadecanethiol (ODT) acts as effective corrosion inhibitor with inhibition efficiency of ~ 90%. The adsorption of alkanethiol self- assembled monolayer on the copper surface was investigated by polarization measurements. The adsorption of SAMs on the copper surface followed Langmuir isotherm and the standard Gibbs energy indicated that the adsorption mechanism of OT, DT and ODT on copper is the hybrid type of physical and chemical adsorption. Values of Gibbs energy ranging from ─24 kJ mol─1 for OT to ─32 kJ mol─1 for ODT indicate that the chemisorption part in the adsorption mechanism prevails with the increase of alkanethiols chain length.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Autor s matičnim brojem:
Zora Pilić, (225331)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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