Jeong Min Baik from UNIST of Ulsan announces a hybrid dielectric metal film based on ultraviolet and able to split the water molecules into hydrogen and oxygen
The mass production of hydrogen from solar energy is no longer an illusion: a team of researchers from the School of Materials Science and Engineering of Ulsan, metropolitan city in southeastern South Korea, has developed a new type of multi-layer photoelectrode that increases the capacity of water splitting by the sunlight.
The component has a bidimensional hybrid dielectric metal structure, which consists mainly of three layers of gold film and a layer of titanium dioxide, all topped with gold nanoparticles. The team reports that the photoelectrode thus obtained shows high absorption of visible light (about 90%) and of UV region rays, significantly improving the photocatalytic capabilities.
Professor Heon Lee, from Korean University, highlights the affordability of the electrolysis process:
“it will further reduce the overall cost of hydrogen production, because it does not require complex operations and soon, thanks to the nanoprinting lithography, the hydrogen mass production will no longer be just a dream”.