Séminaire/Seminar – Utilising and Visualising Intercalation Reactions: from 2D magnets to 4D microscopy – Raj Pandya – 08/04/22

11 h 00 min
Type d’évènement/Event category

Vendredi 8 avril 2022 à 11 h

INSP – Sorbonne Université – 4 place Jussieu – 75005 Paris – Barre 22-23, 3e étage, salle 317

Raj Pandya – LPENS



Intercalation reactions play a huge role in condensed matter science from tuning band structures to bring out superconductivity to allowing the analysis of biomolecules such as DNA. In this talk, I will discuss recent results from methods we have developed and applied to studying a wide-range of intercalation chemistries.
I will begin by covering our recent discoveries of strong room-temperature ferromagnetic correlations along the zigzag edge of semiconducting phosphorene nanoribbons (zPNRs), produced by Li-intercalation into black phosphorous. I will then turn to intercalation reactions in energy storage, namely Li-ion batteries, demonstrating how we can directly visualise in 4D (space and time) ion dynamics in operating batteries at the single-particle level across liquid and solid phases. If time I will finish with a discussion of the application of high-speed Raman methods for tracking Li+/K+ intercalation in IrO2 electrocatalysts and archetypal battery cathode materials.