Bridging the Gap between Structurally Distinct 2D Lamellar Zeolitic Precursors through a 3D Germanosilicate Intermediate

There is broad scientific interest in lamellar zeolitic materials for a large variety of technological applications. The traditional synthetic methods towards two‐dimensional (2D) zeolitic precursors have made a great impact in the construction of families of related zeolites; however, the connection between structurally distinct 2D zeolitic precursors is much less investigated in comparison, thereby resulting in a synthetic obstacle that theoretically limits the types of zeolites that can be constructed from each layer. Herein, we report a Ge‐recycling strategy for the topotactic conversion between different 2D zeolitic precursors through a three‐dimensional (3D) germanosilicate. Specifically, the intermediate germanosilicate can be constructed within 150 min by taking advantage of its structural similarity with the parent lamellar precursor. This process enables the conversion of one 2D zeolite structure into another distinct structure, thus overcoming the synthetic obstacle between two families of zeolitic materials. Ähnlich, aber verschieden: Eine Strategie zur Germanium‐Rückgewinnung basiert auf der topotaktischen Umwandlung zwischen strukturell ähnlichen 2D‐Zeolithvorstufen. Der Ansatz umfasst die Kombination der präkristallisierten fer‐Schicht (PREFER) mit einer Ge‐Quelle zum Aufbau des 3D‐Germanosilicats UTL, das eine verschiedene, aber ähnliche pcr‐Schicht enthält. Die Hydrolyse von UTL setzt dann die pcr‐Schicht frei und regeneriert die Ge‐Quelle.