Inhibitory effect of three phenacyl derivatives on the oxidation of sphalerite (ZnS) in air-equilibrated acidic solution
| Autor: | Laura G. Sârbu, Mădălina I. Duinea, Paul Chiriţă, Lucian M. Birsa, Elena Matei, Mihai Popescu, Florinel Sava, Ana M. Sandu, Mihaela Baibarac |
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| Rok vydání: | 2018 |
| Předmět: |
Aqueous solution
Scanning electron microscope General Chemical Engineering 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Phenacyl 01 natural sciences 0104 chemical sciences chemistry.chemical_compound symbols.namesake Adsorption Sphalerite chemistry symbols engineering General Materials Science Fourier transform infrared spectroscopy 0210 nano-technology Spectroscopy Raman scattering Nuclear chemistry |
| Zdroj: | Corrosion Science. 138:154-162 |
| ISSN: | 0010-938X |
| Popis: | Three phenacyl derivatives have been investigated as potential inhibitors for the aqueous oxidation of sphalerite (ZnS) in air-equilibrated solutions of HCl (pH 2.5 and 25 °C) using potentyodynamic polarization, aqueous batch experiments, scanning electron microscopy coupled with energy dispersive X-ray (SEM/EDX) analysis, Fourier transform infrared (FTIR) spectroscopy, Raman scattering and quantum chemical calculations. Findings show that the studied phenacyl derivatives are inhibitors of sphalerite aqueous oxidation. Quantum chemical calculations indicate that the adsorption of phenacyl derivatives on ZnS is energetically favorable and accounts for the observed inhibiting effects. |
| Databáze: | OpenAIRE |
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