Highly efficient Pd-Fe/Ni foam as heterogeneous Fenton catalysts for the three-dimensional electrode system

A novel particle electrode (PE) Pd-Fe/Ni foam was synthesized and used for Dimetridazole (DMZ) degradation in the three-dimensional electrode (3D) system. Results showed that Pd-Fe/Ni foam exhibited excellent electrocatalytic activity and satisfactory electrocatalytic stability. Inducing Pd and Fe species could not only decrease the resistance and accelerate the electron transfer, but also cause synergistic effect. In the 3D system with Pd-Fe/Ni foam PEs, DMZ degradation was much more efficient as compared with those using Ni foam PEs, Fe/Ni foam PEs and Pd/Ni foam PEs, owing to direct electrolysis, and efficient production of H2O2 and center dot OH of Pd-Fe/Ni foam PEs. (C) 2016 Elsevier B.V. All rights reserved.