Ynchrotronx Ray Diffraction News Today

Prussian blue analogs (PBAs) are promising cathode materials for sodium-ion batteries (SIBs) due to their low-cost, similar energy density comparable with that of LiFePO4 in lithium-ion batteries, and long cycle life. Nevertheless, crystal water (≈10 wt%) in PBAs from aqueous synthesis environments can bring significant side effects in real SIBs, especially for calendar life and high temperature storage performance. Therefore, it is of great importance to eliminate crystal water in PBAs for fu...

Abstract The thermal expansion of the rare earth intermetallic compounds Sm (Co Fe ) Cr (x = 0.9, y = 7; x = 0.8, y = 6.5; x = 0.7, y = 6) have been systematically investigated by high resolution synchrotron x-ray diffraction measurements (~120–480 K; ~ 300–823 K). The magnetic and thermal properties of Sm (Fe Co ) Cr have been studied as a typical example of the Sm (Co Fe ) Cr system by magnetic measurements (ac susceptibility, ~ 5–300 K; DC magnetisation, ~ 77–650 K) and specific h...