Publications by authors named "K Vezzu"
Article Synopsis
- Spinel-structured transition metal oxides are emerging as eco-friendly alternatives to platinum in electrocatalysis, particularly high-entropy oxides (HEOs) which enhance catalyst reactivity through multiple TM-cation sites.
- The study focuses on electrospun (CrMnFeCoNi)O nanofibers, examining how different calcination temperatures and durations affect their morphology and electrocatalytic performance, with optimal results seen at 400 °C for 2 hours.
- Advanced analytical techniques, including broadband electric spectroscopy, reveal that oxygen vacancies and the structure of metal coordination octahedra are critical to the electrocatalytic efficiency of these nanofibers.
Sodium-containing ionic liquids are very promising candidates as ion-conducting materials in alternative to electrolytes based on lithium chemistry. Here we investigate a series of seven ionic liquids with formula (EMImCl/(AlCl))/(δ-NaCl) (0≤x≤0.74).
View Article and Find Full Text PDFLithium-ion batteries (LIBs) are among the most promising power sources for electric vehicles, portable electronics and smart grids. In LIBs, the cathode is a major bottleneck, with a particular reference to its low electrical conductivity and Li-ion diffusivity. The coating with carbon layers is generally employed to enhance the electrical conductivity and to protect the active material from degradation during operation.
View Article and Find Full Text PDFPerovskite-type solid-state electrolytes, Li La TiO (LLTO), are considered among the most promising candidates for the development of all-solid-state batteries based on lithium metal. Their high bulk ionic conductivity can be modulated by substituting part of the atoms hosted in the A- or B-site of the LLTO structure. In this work, we investigate the crystal structure and the long-range charge migration processes characterizing a family of perovskites with the general formula La Li Ti Al O (0 ≤ ≤ 0.
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