Ethylbenzene dehydrogenation: The m‐PBN with the optimal concentration of B defects improved the styrene production rate to 22.54 mmolST g−1 h−1. Meanwhile, when it was further in‐situ grown on Al2O3, the styrene production rate increased to 23.22 mmolST g−1 h−1 and stably run for more than 300 h. Abstract Phosphorus‐doped boron nitride (PBN) has been confirmed as an effective metal‐free catalyst for the direct dehydrogenation (DDH) of ethylbenzene to styrene. In this paper, we further used barbituric acid as co‐reactant sources...
