Self‐Cleaning and Anticorrosive Silica Microsphere@Boron Nitride Nanosheets Core–Shell Hierarchical Structure for Highly Efficient Passive Radiative Cooling

@BNNS coating also exhibits self-cleaning performance and corrosion resistance in both acidic and alkaline conditions, ensuring the preeminent stability over a long time for various practical applications. This work demonstrates that the hybridization of the high reflection, scattering, and emittance of different materials through reasonable structure design can achieve high-efficient passive radiative cooling, offering promising prospect for energy-saving cooling technology.