Florian Kraus focuses on inorganic molecular and solid-state chemistry, with an emphasis on compounds of fluorine and uranium. Methodologically, the preparative chemistry spans a from classical techniques, through chemical transport reactions, to high-pressure autoclave reactions under highly oxidizing conditions (Koselleck Project), to reactions in unusual solvents such as NH3, HF, SO₂, HCN, BrF₃, to photochemistry and even the globally unique preparative fluorine plasma chemistry (Koselleck Project). The latter provides convenient access to larger quantities of all hexafluorides, making it possible for the first time to systematically investigate the unique chemistry of the most reactive compounds known to humankind.