Graphic Catalysts boost hydrogen-based steel production (IMAGE)
Caption
Nickel oxides serve as a catalyst precursor and accelerate the reduction kinetics by a factor of two, compared to an uncatalyzed hydrogen-based reduction. This is possible as nickel oxides bind with neighbouring iron oxides, creating an interface. Nickel breaks the incoming hydrogen molecules into highly reactive hydrogen atoms. These atoms then move across neighbouring iron oxide surfaces, a process known as hydrogen spillover, enabling accelerated reduction reactions.
Credit
Image taken from Nature Synthesis. DOI: 10.1038/s44160-026-01086-5.
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