Towards lithium-metal batteries

Lithium-ion batteries are accompanying the progressive development of society, with relevant applications in everyday life, including consumer electronics, grid levelling, and automotive. Despite their favourable characteristics that enabled their establishment in the market, such as high energy density, superior cycling stability, and lightweight, the rapidly growing automotive sector calls for still higher specific energy and power, increased safety, and lower cost. 

Simulations of a phase change material for non-volatile memories

A class of chalcogenide alloys named phase change materials is exploited in non-volatile memories and in neuromorphic devices. These applications rely on a fast reversible transformation between the crystalline and amorphous phases upon Joule heating. The two phases correspond to the two logical states of the memory that are discriminated thanks to their large contrast in electrical conductivity.

Role of the catalyst in the production of methanol

The conversion of CO2 into solar fuels (e-fuels) or other useful chemicals is at the heart of the energy transition. One of the most important processes in this sense is the production of methanol, CH3OH. For more than half a century, methanol has been produced in the world thanks to a heterogeneous catalyst, Cu/ZnO/Al2O3, where Cu nanoparticles are dispersed on an alumina support with ZnO particles as promoters.

The unbearable lightness of the tear film

When you blink, a thin film of tears is redistributed over the ocular surface. This film is primarily composed of mucins, water, and lipids, and has a thickness of a few micrometres that tends to break typically after a few seconds. Prolonged maintenance of the film's integrity suggests a lower propensity for issues such as dry eye disorder. Tear film breakups and the time at which they occur are typically analysed using in vivo a biomicroscope and a fluorescent dye diluted in tears, which is believed to potentially destabilize the tear film once instilled in the eye.