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Design, Synthesis, and Thermal Characterization of N,N′-Dibutyl-1,6-Hexanediammonium Based Protic Ionic Liquids for Phase Change Energy Storage Applications

Year 2025, Volume: 46 Issue: 4, 780 - 790, 30.12.2025

Derya Kahraman Döğüşcü , Hüseyin Akbaş

https://doi.org/10.17776/csj.1733240

Abstract

Protic ionic liquids (PILs) based on N,N′-Dibutyl-1,6-hexanediammonium were successfully synthesized using lauric, palmitic, and myristic acids as anionic counterparts for thermal energy storage (TES) materials. The structural characteristics of the resulting PILs were characterized using FT-IR, 1H, and 13C NMR spectroscopy, which confirmed effective proton transfer and the formation of ionic bonds between the cationic and anionic species. Thermal properties, including thermal stability were examined using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The values for the latent heat of fusion were recorded as 69.73, 88.73, and 98.95 kJ/mol for PIL1, PIL2, and PIL3, respectively. Moreover, the synthesized PILs exhibit thermal stability up to around 463.15 K. The synthesized PILs showed strong thermal stability and appropriate phase change temperatures, indicating their suitability as PCMs for TES systems. This study provides insights into the design and development of novel PILs tailored for efficient and sustainable energy storage applications.

Keywords

Protic ionic liquid Phase change material Phase change material Fatty acid

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There are 47 citations in total.

Details

Primary Language English
Subjects Chemical Thermodynamics and Energetics, Physical Chemistry (Other)
Journal Section Research Article
Authors

Derya Kahraman Döğüşcü 0000-0002-6181-5778

Hüseyin Akbaş 0000-0002-3013-9033

Submission Date July 2, 2025
Acceptance Date October 15, 2025
Publication Date December 30, 2025
Published in Issue Year 2025 Volume: 46 Issue: 4

Cite

APA Kahraman Döğüşcü, D., & Akbaş, H. (2025). Design, Synthesis, and Thermal Characterization of N,N′-Dibutyl-1,6-Hexanediammonium Based Protic Ionic Liquids for Phase Change Energy Storage Applications. Cumhuriyet Science Journal, 46(4), 780-790. https://doi.org/10.17776/csj.1733240

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