“…Transition metal and metal oxide nanoparticles often provide an alternative to noble metals, with easy availability and low cost [101,102]. In addition, the composition of bimetallic and trimetallic NPs hybrid NPs compared to monometallic NPs is very promising and synchronously benefits from increasing selectivity, efficiency, and stability, owing to synergistic substrate activation [39,86,101,[103][104][105]. NPs from transition metal loaded on hybrid Pd/Fe 3 O 4 have been developed by our group and include Cu/Pd-Fe 3 O 4 [38], Cu 2 O/Pd-Fe 3 O 4 [37], MnO/Pd-Fe 3 O 4 [36], CoO/Pd-Fe 3 O 4 [36], and Ni/Pd-Fe 2 O 3 [39].…”