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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/192383
Effect of Nanoparticles on the Thermal Stability and Reaction Kinetics in Ionic Nanofluids
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Nowadays, the incorporation of nanoparticles into thermal fluids has become one of the most suitable strategies for developing high-performance fluids. An unconventional improvement of thermo-physical properties was observed with the addition of 1% wt. of nanoparticles in different types of fluids, such as molten salts, allowing for the design of more thermally efficient systems using nanofluids. Despite this, there is a lack of knowledge about the effect that nanoparticles produce on the thermal stability and the decomposition kinetics of the base fluid. The present study performs IRand UV-vis spectroscopy along with thermogravimetric analysis (TGA) of pure nitrate and nitrate based nanofluids with the presence of SiO2 and Al2O3 nanoparticles (1% wt.). The results obtained support that nanoparticles accelerate the nitrate to nitrite decomposition at temperatures below 500 ºC (up to 4%), thus confirming the catalytic role of nanoparticles in nanofluids.
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SVOBODOVA SEDLACKOVA, Adela, HUETE HERNÁNDEZ, Sergio, CALDERÓN DÍAZ, Alejandro, BARRENECHE, Camila, GAMALLO BELMONTE, Pablo, FERNANDEZ, Ana inés. Effect of Nanoparticles on the Thermal Stability and Reaction Kinetics in Ionic Nanofluids. _Nanomaterials_. 2022. Vol. 12, núm. 1777. [consulta: 26 de febrer de 2026]. ISSN: 2079-4991. [Disponible a: https://hdl.handle.net/2445/192383]