Chemical transformations using GaN-based catalysts

Abstract

Gallium nitride (GaN), a wide bandgap III–V semiconductor, has been extensively applied in lighting, electronics, and radiofrequency devices over the last few decades. With the distinct properties of fast charge mobility, high stability, tunable wide bandgap, and ionicity structure, GaN-based catalysts have drawn considerable attention in chemical synthesis recently. In this chapter, the recent progress and critical breakthrough of GaN-based catalysis in synthesis are reviewed, with a focus on mechanistic understanding. The reactions are categorized as water splitting, direct methane activation, direct methanol activation, organic synthesis, carbon dioxide reduction, and nitrogen gas reduction. Lastly, the challenges and future possible improvement of GaN-based catalysis are discussed, to encourage more interdisciplinary advances in the development of novel catalysts for sustainable chemical transformations.