Researchers have developed a catalyst sourced from renewable plant waste that shows strong potential for speeding up clean hydrogen production. The material is produced by embedding nickel oxide and iron oxide nanoparticles into carbon fibers made from lignin, creating a structure that improves both efficiency and durability during the oxygen evolution reaction, a crucial part of water electrolysis. The study, published in Biochar X, reports that the catalyst reaches a low overpotential of 250 mV at 10 mA cm² and remains highly stable for more than 50 hours when operating…
