Mechanical Dispersion of Nanoparticles and Its Effect on the Specific Heat Capacity of Impure Binary Nitrate Salt Mixtures

Mathieu Lasfargues, Qiao Geng, Hui Cao, Yulong Ding

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

In this study, the effect of nanoparticle concentration was tested for both CuO and TiO2 in eutectic mixture of sodium and potassium nitrate. Results showed an enhancement in specific heat capacity (Cp) for both types of nanoparticles (+10.48% at 440 °C for 0.1 wt % CuO and +4.95% at 440 °C for 0.5 wt % TiO2) but the behavior toward a rise in concentration was different with CuO displaying its highest enhancement at the lowest concentration whilst TiO2 showed no concentration dependence for three of the four different concentrations tested. The production of cluster of nanoparticles was visible in CuO but not in TiO2. This formation of nanostructure in molten salt might promote the enhancement in Cp. However, the size and shape of these structures will most likely impact the energy density of the molten salt.

Original languageEnglish
Pages (from-to)1136-1146
Number of pages11
JournalNanomaterials
Volume5
Issue number3
Early online date29 Jun 2015
DOIs
Publication statusPublished - 1 Sep 2015
Externally publishedYes

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