Researchers at Linköping University in Sweden have developed a new, innovative three-layer material that enhances the efficiency of producing hydrogen from water using sunlight. Led by associate professor Jianwu Sun, the team has combined cubic silicon carbide, cobalt oxide, and a catalyst to create a material that outperforms pure cubic silicon carbide by eight times in splitting water into hydrogen and oxygen. By effectively capturing sunlight and generating electric charges to drive the water splitting reaction, this material shows promise for providing clean and renewable energy sources for heavy transport modes like trucks, ships, and aircraft. The study distinguishes between 'grey' and 'green' hydrogen, with most current hydrogen being produced from fossil fuels and causing significant carbon dioxide emissions. The researchers aim to produce 'green' hydrogen using only solar energy, targeting a 10% efficiency level for commercialization. This advancement could potentially reduce production costs and environmental impact compared to current methods requiring supplementary renewable electricity. Funded by various organizations, including the Swedish Foundation for International Cooperation in Research and Higher Education, the research team anticipates further development in the next five to ten years to reach the desired efficiency levels. The study, published in the Journal of the American Chemical Society, emphasizes the importance of innovative materials and efficient energy conversion for advancing clean energy technologies.