Fig. 7. 7(a) TEM, and (b) FE-SEM, images recovered of the PAMAM G₀-Pd@γ–Fe₂O₃ complex after the 6^th run for the model reaction of Mizoroki–Heck; (c) magnetization curves of PAMAM G₀-Pd@γ-Fe₂O₃ before use and PAMAM G₀-Pd@γ-Fe₂O₃ after the 6th run for the model reaction of Mizoroki–Heck, at 300 K; (d) FT-IR spectra of PAMAM G₀-Pd@γ-Fe₂O₃ before use; FT-IR spectra of PAMAM G₀-Pd@γ-Fe₂O₃ after 6^th run for the model reactions of Suzuki–Miyaura and Mizoroki–Heck cross-couplings.