Functionalised hexagonal boron nitride for energy conversion and storage

Energy conversion and storage materials have received wide attention as fossil fuels are gradually running out and climate change is looming. Hexagonal boron nitride (h-BN) is not usually considered as a promising material for these applications because of its chemical inertness and poor electronic conductivity. However, through physical and chemical modification, h-BN shows tuneable properties that make it interesting for energy conversion and storage. The excellent stability and environmentally benign nature make h-BN derived materials particularly attractive for green energy applications. In this review, we survey the studies on structural and chemical properties of functionalised h-BN materials as well as their energy-related applications. Research progress in energy conversion and utilisation such as electrochemical catalysis, photocatalysis, and selective oxidative dehydrogenation is reviewed. Energy storage applications including rechargeable batteries, supercapacitors, and hydrogen storage are also presented. Finally, we discuss the future and challenge for functionalised h-BN in energy conversion and storage.