IRIS Institutional Research Information System

Settant’anni dopo. La costruzione del mito degasperiano nella memoria pubblica italiana

AI-Driven Modeling of Ultra-Low Power RF-MEMS Switches for 6G and Future Space Networks

The evolution toward 6G networks marks a paradigm shift where space is no longer a supplementary layer but a native component of the communication architecture. The concept of Space-Air-Ground Integrated Networks (SAGIN) aims to provide seamless, high-speed global coverage by layering terrestrial towers with Low Earth Orbit (LEO) satellite constellations. However, extending 6G to space environments introduces severe constraints regarding signal integrity at millimeter-wave frequencies and the...

In‑Liquid Sputtering and Direct Transfer onto Graphene: A Clean Route to Ni–Graphene Electrocatalysts

Sputtering in low-vapor-pressure liquids provides a clean and versatile route for synthesizing nanostructured electrocatalysts.1–3 In this work, Nickel–Graphene (Ni-G) nanohybrids were synthesized via radio-frequency (RF) magnetron sputtering of Ni into polyethylene glycol (PEG), with direct in-liquid transfer onto graphene (G) sheets. This single-step, chemical-free approach enables uniform nanoparticle dispersion, strong interfacial contact, and preserves nanoscale architecture, offering a ...

Piezo-Assisted RF Magnetron Sputtering of Ni Nanoparticles on TiO₂ Powder Supports for Electrocatalytic Applications

Water electrolysis is a strategic technology for renewable hydrogen production, but its com-mercialization is limited by the cost and availa-bility of efficient electrocatalysts.1 Nickel (Ni) has emerged as a promising non-precious metal catalyst due to its high activity, stability, and durability.2 This study presents a green, dry, and scalable approach for the preparation of Ni-coated TiO₂ nanopowders via plasma-assisted radio frequency (RF) magnetron sputtering.3 The process introduces a u...