Extended Data Fig. 4: XRD patterns of fluorination products from the reaction between AFFF/GAC with different metal chlorides at an input voltage of 100 V.
From: Waste per- and polyfluoroalkyl substance-assisted flash fluorination for lithium recovery from brine

a, AFFF/GAC before ETF. b–f, Reaction products of AFFF/GAC with LiCl (b), NaCl (c), KCl (d), MgCl2 (e), and CaCl2 (f) after ETF.