English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The sour corrosion of C1018 carbon steel in CO 2 -saturated 3.5% NaCl + 100 ppm H 2 S solution and its inhibition by a low-toxic molecule, 1–benzylimidazole (1–Benz), has been investigated. Electrochemical impedance spectroscopy (EIS) results reveal that 1–Benz can form a strongly-adsorbed and highly protective inhibitor layer on the steel surface. Potentiodynamic polarization (PDP) results confirm that 1–Benz is a mixed–type corrosion inhibitor with slightly more anodic tendency. An optimum concentration of 150 ppm provided up to 83% inhibition efficiency. Based on FTIR characterization, 1–Benz interacts with the steel surface using its nitrogen atom and C=C pi-electrons and it adsorbs following the Temkin isotherm. The adsorption reduces localized corrosion, according to SEM-EDX observations. Theoretical parameters confirm that the electron–rich imidazole N atoms and electron-deficient C atoms in the phenyl ring ensure easy electron transfer between 1–Benz and the steel surface.

Sour corrosion of C1018 carbon steel and its inhibition by 1–benzylimidazole: electrochemical, SEM, FTIR and computational assessment