Characterization and Thermal Stability Properties of Bulk Hierarchical Porous Pd Prepared by Kirkendall Effect and Dealloying Method

Figure 5

FE-SEM images of BHPPd after being annealed at various temperature. (a) As-dealloyed, (b) 673 K, (c) 873 K, and (d) 1073 K.

(a)

(b)

(c)

(d)