Figure 2

The average particle size of Pt3Ni/C nanoparticles prepared with different H2:CO volume flow rate (cm3 min−1) i.e., 60:60 (1:1), 30:90 (1:3), 20:120 (1:6), 10:120 (1:12), 5:120 (1:24) and pure CO, respectively.

The average particle size of Pt3Ni/C nanoparticles prepared with different H2:CO volume flow rate (cm3 min−1) i.e., 60:60 (1:1), 30:90 (1:3), 20:120 (1:6), 10:120 (1:12), 5:120 (1:24) and pure CO, respectively.