With the widespread adoption of rising wi-fi applied sciences and gadgets, electromagnetic (EM) safety supplies have develop into a worldwide analysis focus. This examine employs cuprous oxide (Cu2O) cubes as templates and coats their surfaces with the conductive metal-organic framework (MOF) – copper hexahydroxytriphenylene (Cu-HHTP) to assemble core-shell Cu2O@Cu-HHTP. The fabric displays outstanding frequency-dependent EM traits, with each dielectric loss tangent and attenuation fixed demonstrating peak values at 15.6 GHz which can be significantly increased than these at different frequencies. Owing to those properties, Cu2O@Cu-HHTP shows distinctive EM wave absorption and frequency-selective shielding capabilities. The fabric achieves a minimal reflection lack of -33.4 dB, with its efficient EM wave absorption frequencies displaying thickness-independent traits concentrated within the 13.6-17.0 GHz vary. For EM shielding, it displays a shielding effectiveness distinction of 19.8 dB and a transmission coefficient distinction of 0.93. Moreover, leveraging the superior EM attenuation of Cu2O@Cu-HHTP, an EM power conversion gadget is developed to reap and reuse waste EM power. This examine not solely expands the functions of conductive MOFs in EM safety, but additionally advances the event of high-performance EM safety supplies with frequency-selective properties.
