2024/07/15 by Greco, Giorgia, Elia, Giuseppe Antonio, Kayser, Yves +4
#600 Technik #Medizin #X‐ray absorption fine structure #angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten #electrochemically induced phase transitions #electronic structures #graphite intercalation compounds #superlattices #thermodynamics
paper · doi:10.14279/depositonce-20334
This work aims to study the insertion of AlCl−4 anion in the crystalline structure of oriented pyrolytic graphite (PG) at the point of view of the anion itself. The electronic and atomic structures of the anion at different intercalation stages are studied. In particular double-edge (bicolor) X-ray absorption spectroscopy at the Al and Cl K-edges is carried out, highlighting a contraction of the anion bonding at the highest intercalation degree obtained electrochemically (stage 3), while the electronic population changes for both the edges upon cycle.