Scientists have found a new way to make hydrogen from water. The discovery comes from Oregon State University, where researchers developed a light-activated material that splits water into hydrogen without needing an expensive metal catalyst. The material, called BVR-19, uses an unusual sulfur bond that breaks when struck by light.
The work was led by Kyriakos Stylianou of the OSU College of Science. His team published the findings in the Journal of the American Chemical Society. They say the approach could offer a cheaper and more practical path to turning sunlight into clean fuel.
How the Material Works
A catalyst speeds up a chemical reaction without changing itself. A photocatalyst works the same way, but it needs light to start. When the material absorbs light, it enters a higher energy state. That energy then drives the chemical reaction faster.
Stylianou’s research focuses on metal organic frameworks, or MOFs. These are crystalline, porous materials whose structures can be precisely tuned. MOFs are made from positively charged metal ions surrounded by organic “linker” molecules. Their tiny pores and adjustable shapes let scientists tailor their properties for different uses.
Millions of MOF structures are theoretically possible, Stylianou said. Chemistry researchers have already made nearly 100,000 of them, while the traits of roughly another half-million have been predicted.
The Sulfur Bond That Does the Work
For this study, the team looked at a MOF called BVR-19. It holds an unusual bond between two sulfur atoms. That bond breaks temporarily when exposed to light, creating highly reactive sulfur species.
“The organic component does the important work,” Stylianou said. “Instead of depending mainly on the metal atoms, our material uses its sulfur-containing organic building blocks to catch light energy and move electrons where they are needed to produce hydrogen. This represents a different way of thinking about how these materials should be designed.”
Because of that design, BVR-19 does not need an extra metal catalyst. That could simplify future light-driven hydrogen systems. The material also forms on its own in water at room temperature, cutting the energy needed to make it.
Why Hydrogen Matters
Hydrogen is widely used in fuel cells for vehicles. It is also used in ammonia production, metal refining, and plastics manufacturing. Producing it from water with a catalyst can be cleaner than the standard industrial method, which depends on natural gas.
That conventional process, known as methane-steam reforming, releases carbon dioxide while making hydrogen. Existing water-splitting methods often use electrocatalysis, which requires electricity. The environmental benefit depends heavily on where that power comes from. For the process to stay sustainable and economically competitive, the electricity must come from low-cost renewable sources.
At present, hydrogen made through methane-steam reforming costs about $1.50 per kilogram. Green hydrogen costs roughly $5 per kilogram.
A Blueprint for Cheaper Green Hydrogen
“Our work provides a blueprint for designing better materials that can lower the cost of green hydrogen,” Stylianou said. He directs OSU’s Materials Discovery Laboratory, known as the MaD Lab. By changing the metal while keeping the rest of the material the same, the team found why some versions of the MOF work much better than others.
These findings give new design rules for creating more effective materials for solar fuel production, he said.
Who Made This Happen
MaD Lab members Emmanuel Musa, Dylan Pyle, Jacob Lessard, Andrzej Gladysiak, Ankit Yadav, Silas Blessed and Prayash Mohanty took part in the research. They were joined by Oregon State’s Logan Lancaster, Taylor Krueger, Min Soo Jung, Galen Fritz, Jacob Hirschi, Hongliang Huang, William Stickle, Xiulei “David” Ji, Chong Fang and Tim Zuehlsdorff.
The Murdock Charitable Trust, the National Science Foundation and the OSU College of Science supported the study.
Comparing the Two Ways to Make Hydrogen
| Method | Cost per Kilogram | Main Drawback |
|---|---|---|
| Methane-steam reforming | $1.50 | Releases carbon dioxide |
| Water electrolysis (green hydrogen) | $5 | Depends on where electricity comes from |
The Road Ahead
Stylianou’s team has shown that MOFs can be tuned to capture light and drive chemical reactions. By focusing on the organic linker molecules rather than the metal atoms, the team opened a new path for solar fuel production.
The research also points to a more practical way to make MOFs. Because BVR-19 forms spontaneously in water at room temperature, the energy cost of fabrication drops. That could make the technology easier to scale.
The $5 per kilogram price tag for green hydrogen is significant. A MOF-based system matching that cost while avoiding the carbon footprint of methane-steam reforming would avoid that footprint.
The findings give researchers a new set of design rules. Changing the metal while keeping the rest of the material the same showed why some versions worked much better than others.
The team’s work is a reminder that fundamental science can lead directly to practical applications. A material that splits water with light is not just a laboratory curiosity. It is a candidate for a cleaner, cheaper way to make hydrogen.
Whether it becomes a commercial reality depends on further testing and engineering. The basic approach has been demonstrated. Light, water and a cleverly designed molecule can now make hydrogen.
Source material: “Scientists just found a new way to make hydrogen from water,” ScienceDaily.
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