| Autor: |
M.V. Yarmolenko |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
International Journal of Thermofluids, Vol 21, Iss , Pp 100539- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-2027 |
| DOI: |
10.1016/j.ijft.2023.100539 |
| Popis: |
Our experimental investigations show that rate of copper anodes degradation decreases during electrolysis in concentrated NaCl solution in water (5 mol/kg or 23 %, freezing point equals −22°C, pH 6.5–7.5) at electric current density about 3000 A/m2 (or 30 A/dm2 = 3 mA/mm2) with temperature increasing from room temperature to 100 °C. Electric current value also increases with temperature increasing. Really, such result is unexpected. General quantity of the H+ and Cl− ions decreases during electrolysis at all temperatures since the H2 and Cl2 gases are formed near electrodes. General quantity of the Cu+ and Cu2+ ions decreases with temperature increasing too. We guess that one reason only should be for electric current value increasing: average charge of copper ions increases from +1 at room temperature to +1.5 at 100 °C and to +2 at 180°C. Corresponding mathematical model is proposed for the analysis. Literature experimental data are used too. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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