Computational simulation and efficient evaluation on corrosion inhibitors for electrochemical etching on aluminum foil
| Autor: | Yarong Xi, Yedong He, Pengfei Liu, Yajun Xu, Chenhao Ren, Xiejing Luo, Dawei Zhang, Xiaogang Li, Xiongbo Yan, Chaofang Dong, Junsheng Wu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
020209 energy General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Capacitance Corrosion chemistry.chemical_compound Oleic acid Corrosion inhibitor chemistry Chemical engineering Aluminium Etching (microfabrication) 0202 electrical engineering electronic engineering information engineering General Materials Science 0210 nano-technology Citric acid Dissolution |
| Zdroj: | Corrosion Science. 187:109492 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2021.109492 |
| Popis: | The tunnel density and capacitance of etched aluminum foils would be significantly decreased for excessive dissolution during electrochemical etching process. The addition of low-concentration corrosion inhibitor solutions effectively improved the tunnel distribution. Various organic molecules as 8HQ, BTA, MBT, Citric Acid and Oleic Acid were analyzed using DFT and MD simulations and etching solutions with corrosion inhibitors at concentration of 0.10 mmol L −1 were designed. Relationship of physicochemical parameter and experimental tunnel density was established. The results indicate that Oleic Acid presents excellent corrosion inhibiting performance on the improvement of tunnel density as ρ = 1.5925 × 10 7 cm −2 and predicted capacitance as C = 0.72 μF cm −2 at 520 V. |
| Databáze: | OpenAIRE |
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