fig4

Figure 4. Evaporative cooling materials and devices. (A) Heat conduction and sweat evaporation of i-Cool textile compared with conventional textile; (B) optical and SEM images of i-Cool (Cu) textile that consist of Nylon 6 nanofiber on Cu foil. Reproduced with permission^[120]. Copyright 2021, Springer Nature; (C) aramid-nanofiber-MnO₂-nanowire (ANFMN) hybrid membrane; (D) SEM images of hydrophilic aramid-nanofibers-MnO₂-nanowires (HAFMW) and hydrophobic MnO₂-nanowires@MnO₂-nanosheets (HMWMN), respectively. Reproduced with permission^[122]. Copyright 2022, American Chemical Society; (E) fabrication process of the hierarchical metafabric using electrospinning; (F) optical image of metafabric; (G) viewed from above, the wetting responses of the CA/Al₂O₃/HPX and PA6/SiO₂/HPX layers, respectively. Reproduced with permission^[123]. Copyright 2022, American Chemical Society; (H) thermal management of MIL-101(Cr) through moisture adsorption-desorption process; (I) temperature measurement of electronics with MIL-101(Cr)-coated heat sink. Reproduced with permission^[124]. Copyright 2020, Elsevier.