Proto-pb is used in advanced catalytic systems for selective hydrogenation reactions, particularly in fine chemical and pharmaceutical synthesis. Its unique electronic structure enhances reaction efficiency under mild conditions, reducing unwanted byproducts. It also shows promise in sensor technologies for detecting trace gases due to its high surface reactivity. Additionally, Proto-pb serves as a precursor in the fabrication of specialized nanomaterials for energy storage applications, such as high-capacity electrodes in next-generation batteries. Ongoing research explores its role in photochemical processes for sustainable fuel production.