Pt-nanoparticles on ZnO/carbon quantum dots: a trifunctional nanocomposite with superior electrocatalytic activity boosting direct methanol fuel cells and zinc–air batteries

Abstract

A ternary PtNP-ZnO@CQDs nano-catalyst, made via a one-pot process, outdoes commercial catalysts in MOR, OER, and ORR. As a Zn–air battery cathode, it delivers high energy density and durability, showing great promise for future energy applications.