Journal
APPLIED SCIENCES-BASEL
Volume 12, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/app12031652
Keywords
ionic liquids; heat storage; thermal stability; HRMAS NMR; FTIR
Categories
Funding
- FELIX project (Fotonica ed Elettronica Integrate per lIndustria) [6455]
- project MIUR Cluster [CTN02_00018, CTN02_00018_10016852]
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This study investigated the thermal stability and corrosion effects of a promising ionic liquid (IL) to be used as an advanced heat transfer fluid in solar thermal energy applications. Degradation tests were conducted on IL samples in contact with different metals, and various analytical techniques were employed to verify the occurrence of degradation processes due to aging.
We investigated the thermal stability and corrosion effects of a promising ionic liquid (IL) to be employed as an advanced heat transfer fluid in solar thermal energy applications. Degradation tests were performed on IL samples kept in contact with various metals (steel, copper and brass) at 200 degrees C for different time lengths. Structural characterization of fresh and aged IL samples was carried out by high-resolution magic angle spinning nuclear magnetic resonance and Fourier transform infrared spectroscopic analyses, while headspace gas chromatography-mass spectrometry was employed to evaluate the release of volatile organic compounds. The combination of the above-mentioned techniques effectively allowed the occurrence of degradation processes due to aging to be verified.
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