Oxidative dehydrogenation of propane (ODHP) is a key technology for producing propene from shale gas, but conventional metal oxide catalysts are prone to overoxidation to form valueless CO_x. Boron-based catalysts were recently found to be selective for this reaction, and B–O–B oligomers are generally regarded as active centers. We show here that the isolated boron in a zeolite framework without such oligomers exhibits high activity and selectivity for ODHP, which also hinders full hydrolysis for boron leaching in a humid atmosphere because of the B–O–SiO_x linkage, achieving superior durability in a long-period test. Furthermore, we demonstrate an isolated boron with a –B[OH…O(H)–Si]₂ structure in borosilicate zeolite as the active center, which enables the activation of oxygen and a carbon–hydrogen bond to catalyze the ODHP.

丙烷的氧化脱氢（ODHP）是由页岩气生产丙烯的一项关键技术，但常规的金属氧化物催化剂容易发生过氧化反应，形成无价值的CO _x。最近发现，基于硼的催化剂对该反应具有选择性，并且B–O–B低聚物通常被视为活性中心。我们在这里表明，没有这种低聚物的沸石骨架中分离出的硼对ODHP表现出高活性和选择性，由于B–O–SiO _x的连接，这也阻碍了在潮湿环境中浸出硼的完全水解，从而实现了卓越的耐久性。长期测试。此外，我们证明了具有–B [OH…O（H）–Si] ₂的孤立硼 以硼硅酸盐沸石为活性中心的结构，使氧和碳氢键的活化能够催化ODHP。