Unraveling Surface Basicity and Bulk Morphology Relationship on Covalent Triazine Frameworks with Unique Catalytic and Gas Adsorption Properties

摘要: Activity and selectivity are key features at the basis of an efficient catalytic system for promoting steam- oxygen-free dehydrogenation (DDH) ethylbenzene to styrene. The catalyst stability under severe reaction conditions, reduction leaching its active sites, their resistance deactivation phenomena on stream other fundamental aspects keep in mind while synthesizing new materials process. Although recent use single-phase (doped or undoped) carbon nanomaterials has significantly contributed improving this catalysis, relationship between morphology chemical surface properties still remains be addressed. Here, a class highly microporous, N-doped covalent triazine frameworks (CTFs) with superior activity DDH compared benchmark systems state-of-the-art is reported. Notably, comparative analysis chemico-physical unveiled role “chemically accessible” basicity passivation stream. Finally, unique synthesized CTFs demonstrated by excellent H2 storage capability CO2 absorption that rank among highest reported so far related systems.