Abstract: Nanoparticle dispersions at a minute concentration in salt mixtures have recently been reported to significantly increase their specific heat capacity. However, there is a discrepancy between experimental results reported for the same kind of molten salt-nanoparticle mixtures by different research groups. From our literature survey, we learned that there is no standardized synthesis protocol […]
Abstract: Nanoparticle dispersions at a minute concentration in salt mixtures have recently been reported to significantly increase their specific heat capacity. However, there is a discrepancy between experimental results reported for the same kind of molten salt-nanoparticle mixtures by different research groups. From our literature survey, we learned that there is no standardized synthesis protocol for preparing molten salt nanofluids. In general, two-step method has been the most widely used in the literature. Nanoparticles and salts are dispersed in an aqueous solution. The mixture is then ultrasonicated to disperse the nanoparticles homogeneously. The mixture is then dried at elevated temperatures to obtain uniformly mixed salt-nanoparticle mixture, which results in a molten…