Tooth enamel possesses outstanding viscoelasticity as well as stiffness — a combination of properties often considered a trade-off. Now, a bi-directional freezing method affords a biomimetic composite with mechanical properties superior to those of enamel.
View Article and Find Full Text PDFCommun Chem
November 2021
Understanding heat conduction in solids is fundamental to the design of high-performing thermoelectric materials. Now, a combined computational and experimental study shows how local order paired with long-range disorder leads to a desirable reduction in thermal conductivity while retaining high electron mobility in the Zintl phase EuZnSb.
View Article and Find Full Text PDFLithium-ion batteries suffer from declining performance when the electrolyte decomposes. Now, low-dosage cryogenic transmission electron microscopy (cryo-TEM) visualizes how the common solid electrolyte interface component lithium carbonate decomposes and how additives stabilize the interface.
View Article and Find Full Text PDFContact freezing of water is a very fast and common process that is still not well understood due to challenges in probing this microscopic phenomenon. Now, molecular dynamics simulations help to explain experimental data of contact freezing, showing a connection between water’s suspected propensity to undergo surface freezing and the kinetic enhancement during contact nucleation.
View Article and Find Full Text PDFPlatinum catalysts are widely employed for vehicle exhaust treatment, but their activity is poor when the catalyst is cold. Now, precise control of the interfacial structure of platinum sub-nanoclusters on copper-doped ceria delivers excellent activity at low temperatures.
View Article and Find Full Text PDFLithium-ion batteries suffer from stability issues. Now, spontaneously formed, stable voids in antimony alloy anodes offer a simple remedy.
View Article and Find Full Text PDFThe CsCl/LiCl system has been studied for over a century now. Numerous phases have been predicted - only three have hitherto been found. We present the synthesis and single-crystal structure of the cesium lithium pentachloride CsLiCl, predicted earlier but with a different structure.
View Article and Find Full Text PDFAntifreeze Proteins (AFPs) inhibit the growth of an ice crystal by binding to it. The detailed binding mechanism is, however, still not fully understood. We investigated three AFPs using Molecular Dynamics simulations in combination with Grid Inhomogeneous Solvation Theory, exploring their hydration thermodynamics.
View Article and Find Full Text PDF