“By chance, Lars Hultman found a method that has been used in Japanese forging art for over a hundred years.”
Linköping researchers made single-atom sheets of gold by etching titanium carbide away with Murakami’s reagent, a century-old knife-smith’s recipe. The gold only got inside the base material because a contact coating went wrong at high temperature. The press release lists CO2 conversion, hydrogen production, water purification, communication “and much more.” The material is real, and every one of those applications is a wish.