Scientists are finding new ways to replace expensive, scarce platinum catalysts with something far more abundant: tungsten carbide. By carefully controlling how tungsten carbide’s atoms are arranged at extremely high temperatures, researchers discovered a specific form that can rival platinum in k ey chemical reactions, including turning carbon dioxide into useful fuels and chemicals. Even more promising, the same material proved dramatically better at breaking down plastic waste, outperforming platinum by more than tenfold. ...read more read less