Browsing by Author "Lilja C."
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Item Influence of ionic strength on hydrogen generation during interaction of copper with deoxygenated neutral solution(2021-08-01) Betova I.; Bojinov M.; Lilja C.Interaction of copper with deoxygenated solutions is key to quantify corrosion during long-term exposure in a final high-level nuclear waste repository. To evaluate the effect of ionic strength on such interaction, electrochemical measurements in 0.001−0.1 mol dm−3 NaClO4 were performed at 22, 50 and 70 °C. An extended model including a homogeneous reaction is proposed to account for the extra features in impedance spectra, and the effect of perchlorate concentration (i. e. ionic strength) on its kinetic parameters is discussed. Using the model predictions, the rates of hydrogen production in pure water are estimated and compared to literature data.