Operando XAS technique for alloxazine based MOFs in Li-ion battery conditions

An in operando XAS technique is foreseen, in order to investigate the behaviour of molecular compounds, based on MOFs (Metal-organic Frameworks) embedded in an electrode, into a Li-ion battery. The MOF has been built from metals (M = Cu, Co or Ni) and redox-active alloxazine based ligands, and the metals, that are normally not affected during the charge/discharge process, will be probed. The data will provide crucial structural information concerning the behavior of the MOF during the cell cycling process into the Li-ion device. This type of data is very scarce in the literature and will be complementary to another technique that is actually used: in operando EPR spectroscopy. The ID12 beamline, and the use of a special sample holder, enabling to reproduce the conditions in a Li-ion battery, is required. The experiment will enable us to test a series of different MOFs working at different metal edges.