Effect of Nanoparticles on the Thermal Stability and Reaction Kinetics in Ionic Nanofluids

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Publication Highlights

1. Through UV-Vis and FTIR spectroscopy, the nitrite concentration was monitored from room temperature to 500°C. Molten salt-based nanofluids between this temperature range show the more significant nitrites formation, up to 4% in front of pure sodium nitrate (up to 0.8%).
2. The results indicate an influence in the chemical degradation due to the nature of the nanoparticles, the more alkaline NPs, the greater variation in absorbance for the temperature range.
3. Nanoparticles helps to prevent humidity absorption, contributing to its higher chemical stability with lower hygroscopicity.
4. Nanofluids exhibit higher thermal stability than pure NaNO₃ despite the slight increase in nitrite concentration.

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