RESEARCH ON ENERGY STORAGE PERFORMANCE OF TETRA-ORTHO-AZOBENZENE MOLECULES
Molecular solar energy storage technology based on photoresponsive compounds is a unique solar thermal conversion and storage technology.The isomerization performance,energy storage performance and stability of the synthesized tetra-ortho azobenzene molecule were studied experimentally.The results show that the tetra-ortho-azobenzene molecule can undergo isomerization under red,green and ultraviolet light excitation,and its half-life is 70 min at room temperature.The degree of isomerization after red,green and ultraviolet light irradiation is 28%,41%and 59%,respectively.When the isomerization degree of the tetra-ortho-azobenzene molecule is 100%,its energy storage density is 37.88 kJ/mol.In addition,the tetra-ortho azobenzene molecule exhibits excellent cycle performance and thermal stability.
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