Phosphorus-doped h-boron nitride as an efficient metal-free catalyst for direct dehydrogenation of ethylbenzene

The N₂PO and N₃P–OH sites of PBN synergistically catalyzed the direct dehydrogenation reaction of ethylbenzene with a styrene production rate of 6.63 mmol_ST g⁻¹ h⁻¹ even after 100 h.