Chalcogenide-Based Complex Transition Metal Electrocatalyst for Hydrogen Peroxide Production

Electrochemical production of H 2 O 2 by oxygen reduction reaction (ORR) provides an alternative method to the energy intensive anthraquinone process. Nickel-Molybdenum-Tellurium (Ni-Mo-Te) film has been electrodeposited on fluorine-doped tin oxide (FTO) substrate. Te loading in the Ni-Mo-Te film was varied by changing Te precursor concentration in the electrolyte. The resulting film was tested in an H-cell as an electrocatalyst for H 2 O 2 production via ORR. A 4-fold increase in the activity towards ORR was attributed to the increased number of Te sites in the Ni-Mo-Te film leading to effective electron transfer.