Self-supported bimetallic Ni–Co compound electrodes for urea- and neutralization energy-assisted electrolytic hydrogen production

Hydrogen represents one of the most promising renewable energy sources for next generation energy systems, however, its large scale production is high cost and high energy. A proof-of-concept alkaline-acid electrolyzer is reported here that can significantly reduce the amount of electrical energy consumed in electrolytic hydrogen production, implemented by the development of self-supported bimetallic Ni-Co compound electrodes used as the anode and cathode, respectively, where a urea oxidation reaction (UOR) occurs at the alkaline Ni