Abstract
Glasses with ultrahigh stability are of special interests for both applications and fundamental research. Here, a novel ultra-stable glassy state was prepared by the strong interface effect of D-mannitol with nanoporous copper, which suppress the crystallization and first-order liquid-to-liquid transition fully upon heating that exist in free D-mannitol. The glass transition temperature of the nano-confined D-mannitol is about 12–20 K higher than that of the ordinary free D-mannitol glass. The fragility of the former is 73 and that of the latter is 125, reflecting a better glass forming ability of nanoconfined D-mannitol. These results suggest that the large adsorption energy of nano-confinement provide a universal method for achieving ultrastable glasses.
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