A recent international collaborative study led by experts from Flinders University, South Australia, the US, and Germany has made significant strides in advancing the production of green hydrogen. The research focuses on developing a novel solar cell process that utilizes solar power to efficiently generate hydrogen from water. The study introduces a new class of kinetically stable solar material, 'core and shell Sn(II)-perovskite' oxide, which shows potential as a catalyst for the oxygen evolution reaction crucial for producing pollution-free hydrogen energy. Published in The Journal of Physical Chemistry C, the results of this research indicate promising developments in the field of carbon-free 'green' hydrogen technologies. By harnessing non-greenhouse-gas-emitting power sources for electrolysis, this novel approach could lead to high-performance hydrogen production. The study emphasizes the importance of utilizing solar-driven processes in the industrial-scale generation of hydrogen, offering a sustainable alternative to traditional methods. Lead author Professor Gunther Andersson highlights the study's significance in stabilizing and enhancing the effectiveness of tin compounds in water. Professor Paul Maggard, known for his work on catalyst development for water splitting, underscores the material's ability to absorb sunlight energy efficiently for fuel-producing reactions. The research builds upon earlier work by Professor Paul Maggard and involves contributions from experts at Flinders University, University of Adelaide, and Universität Münster. By leveraging nanotechnology and innovative catalysts, the study opens up possibilities for cost-effective and eco-friendly hydrogen production on a large scale. This breakthrough marks a positive step towards a more sustainable energy future.