Hydrogen peroxide sensor based on in situ grown Pt nanoparticles from waste screen-printed electrodes

Screen printing technology is widely used for the fabrication of low-cost disposable electrodes. However, this generates solid wastes that contain precious metals like platinum, which is highly polluting and quite valuable for different industries. Therefore, it is necessary to process spent platinum-containing materials to meet future demand and to protect resources. This work presents, for the first time, a procedure to recycle platinum from...