| Summary: | Thermal energy storage has very important
prospects in many applications related to the use of renewable
energies (solar energy, etc.) or other energy sources,
such as waste heat from industrial processes. Thermochemical
storage is very attractive for long-term storage,
since it could be conducted at room temperature without
energy losses. In the present paper, a novel nanocomposite
material, Ca2−αZnα(OH)4, is prepared using coprecipitation
methodology and is characterized by XRD
and DSC tests. The XRD result shows that the grain size of
the nano-composite ranges from 40 nm to 95 nm. The DSC
test result shows that the nano-composite exhibits high
thermal storage capacity: 764.5 J/g at α = 0.8555. Its thermal
decomposition temperature was found to be approximately
180º. Itwas found possible to recover 63.25% of the
stored heat energy.
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