Fig. 1

Identification of FePt NPs and the FePt@MMT derivation. a Schematic diagram illustrating how the FePt@MMT-MIT be prepared. b The crystal structure of the FePt@MMT nanocomposite. TEM images of c FePt@MMT NPs and d the relative lattice distance of FePt NPs in FePt@MMT e XRD data of different MMT concentration ratios of FePt@MMT. f FTIR and g TGA data show the functionalized CTAB molecules and the sintering temperature of CTAB, respectively