Analysis reveals specific heat capacity and thermal conductivity variation in electrolyte solutions, suggesting vital applications in energy storage and water treatment.
This study investigates the thermal properties of water-electrolyte mixtures, specifically focusing on binary and ternary electrolyte solutions over a concentration range of 0.01 mol%–23.5 mol% at two constant temperatures (20°C and 40°C). The results indicate that the specific Heat Capacity (Cp) and Thermal Conductivity (λ) exhibit polynomial dependencies on the ionic radius and charge density. As the ionic radius increases from 0.72 Å (Co²⁺) to 1.65 Å (Cs⁺), Cp decreases by up to 12%. As the charge density increases from 0.0468 C/Ų (Cs⁺) to 0.4921 C/Ų (Co²⁺), Cp increases by up to 15%, while λ decreases by 8%-20% with an increasing charge density, confirming the influence of hydration. These results provide a quantitative framework for electrolyte-based thermal applications in energy storage, water treatment, and thermodynamic modeling.
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Kambarova et al. (2025) studied this question.
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