Latent heat of molten salt transport across graphite induced anisotropic interface

Apr 22, 2022 / Author by GE Zhiwei Text SizeDBS

The supported phase change of molten salt is a promising approach for thermal energy storage. Here we reveal a diffusion-controlled latent heat transportation by a controllable graphite induced anisotropic interface. It focus on salt crystallization processes across the interfaces during phase changing, and underling relationship between interfacial anisotropy and latent heat transport was understood: The anisotropic interface induced by graphite tends to compete with the driving force of crystallization in confinement, releasing the transport limitation for the latent heat. The sharp density gap with a large loading of graphite could not contribute to release the transport limitation but serves as a layer for driving the crystallization, leading to the failure of graphite anisotropic interface for diffusion control over latent heat. This work considered is the microscopic kinetics of salt crystallization and latent heat transfer in confinement, so clarification of the interdependences has farreaching implications for understanding material design strategies.

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