“…To satisfy the requirements of environmental protection and sustainable development, the use of heterogeneous catalysts instead of traditional homogeneous catalysts has attracted much attention. − As widely used heterogeneous catalysts, solid bases are extremely valuable for applications in resource-saving and environmentally friendly catalytic reactions because of their obvious advantages including low corrosiveness, easy reutilization, and trivial byproducts. − These solid base catalysts have made great progress for different catalytic reactions, for example, Knoevenagel condensation, − Michael addition, , halogenation, and transesterification reaction, , indicating good catalytic activity. , Conventional solid base catalysts have fixed properties, and the catalytic activity is regulated by external factors such as temperature and pressure. Regulation of the activity by in situ changing their own properties has never been reported.…”