Graphene quantum dots as supramolecular linkers in metal organic frameworks for constructing metal atom electrocatalysts.

Abstract

A new strategy is developed to stabilize single cobalt sites by covalent linking between metal and N-doped graphene quantum dots (N-GQDs) confined within the pores of zeolitic imidazolate frameworks (ZIFs). The incorporation of N-GQDs not only facilitates the formation of abundant active sites but also promotes their accessibility.