In Situ Synthesis of Alumina Nanoparticles in a Binary Carbonate Salt Eutectic for Enhancing Heat Capacity.

A binary carbonate salt eutectic (LiCO-KCO)-based nanofluid was in situ synthesized by mixing with a precursor material, aluminum nitrate nonahydrate (Al(NO)·9HO). Thermal decomposition of the precursor was successfully carried out to synthesize alumina (AlO) nanoparticles at 1 wt.% concentration.

Investigation of time-temperature dependency of heat capacity enhancement in molten salt nanofluids.

In this study, the time-temperature dependency of heat capacity enhancement in molten salt nanofluids was studied experimentally. The result shows the heat capacity enhancement is directly related to the time-dependent synthesis process. Various samples of a binary salt mixture of LiCO-KCO doped with 1% AlO were prepared by heating and cooling at different rates (2, 4, 6, 8, and 10 °C min) along with the pure binary salt mixture.