PROCESS TO MAKE IRON BASED ELECTROCATALYST, AN ANODE MATERIAL, AN ELECTROCHEMICAL SYSTEM AND A PROCESS FOR WATER CONVERSION, CATALYSIS AND FUEL GENERATION

摘要

This invention provides a simple approach for the straightforward and direct preparation of iron-oxide based electrocatalytic materials film (FeO_x—Ci) on a simple Fe substrate by controlled surface-anodization and/or self-deposition in simple and low-cost carbonate buffer. The FeO_x—Ci based electrocatalysts may advantageously be employed as electrode and as anode material in water oxidation, water conversion systems and fuel generation assemblies. The FeO_x—Ci exhibits remarkably low over potential (η≈360) for anodic oxygen evolution relative to other Fe-oxide based catalysts, and show very high activity and stability for long-term water electrolysis operation.