Hydrogen energy may become the key renewable fuel source in the future. Hydrogen is the most widely distributed substance in the universe and its preparation methods are also varied. Hydrogen production from water by a process called electrolysis is the cleanest method, but the catalyst required is a rare metal such as platinum. Researchers at Washington State University have now developed a fast and inexpensive alternative to make "nano-bubble" catalysts with nickel and iron. They say that this catalyst performs better.
Water electrolysis has not yet reached industrial scale, mainly due to the cost of these catalysts and the high energy input required to trigger the reaction. Scientists solved this problem by using inexpensive catalysts such as molybdenum sulfide and mixed solid electrolytes.
Researchers at Washington State University use nickel and iron, two inexpensive and abundant metals as catalysts. Using these metals they created nano-foam, a material that resembles a sponge at the atomic level. Because a large amount of surface area is in contact with water, nanobubbles can effectively initiate reactions. The team found that the material performs better, requires less energy, and loses very little in the stability test within 12 hours, compared to expensive catalysts. Activity.
A large number of nanofoams can be produced relatively inexpensively within a few minutes. The researchers did not outline the formulation process, but they described it as "a very simple method that is easy to use in large-scale production." The next step for researchers is to conduct large-scale testing.
The research results have been published in the journal "Nano Energy".
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