 This study developed a new type of flexible electrode made of Fe-based amorphous ribbons decorated with nanostructured iron oxides. This electrode was created through a single step process using a low concentration of sodium hydroxide, NaOH, solution. The resulting electrode exhibited high performance in terms of specific capacitance, energy density, and power density. These characteristics make it suitable for use in supercapacitors. This article was authored by Mircha Nikolescu, Melinda Vaida, Carmen Lazau, and others.