Magnetic Slippery Extreme Icephobic Surfaces

Abstract

Here we report new magnetic slippery surfaces outperforming state-of-the-art icephobic surfaces with a ice formation temperature of 34 C, 2–3 orders of magnitude higher delay time in ice formation, extremely low ice adhesion strength (≈2 Pa) and stability in shear flows up to Reynolds number of 105. In these surfaces, we exploit the magnetic volumetric force to exclude the role of solid–liquid Interface in ice formation. We show that these inexpensive surfaces are universal and can be applied to all types of solids (no required micro/Nano structuring) with no compromise to their unprecedented properties. These liquid–liquid interfaces provide a low-energy interface for heterogeneous ice nucleation with Gibbs energy barrier close to the homogenous limit.