Split Syntheses: Introducing Bottom-Up Control over Aluminum in SSZ-13 and ZSM-5 Zeolites.

ABSTRACT: Zeolite synthesis is known as a difficult-to-control process, with many degrees of freedom that have a partially uncharted impact on the final product. Due to this, many zeolite scientists have regarded the initial mixing (aging) stage as the only time at which the chemical composition of a zeolite synthesis mixture can be impacted without heavily disrupting the delicate equilibria that are at play during crystallization. Recently, however, this view has started to change, with innovative techniques such as charge density mismatch or electro-assisted synthesis showing that the addition of new elements to the reactor midsynthesis might lead to new and surprising outcomes. In this manuscript, we show that by intermittent removal of certain fractions, notably Al-rich solids or Si-rich liquids

SUBMITTER: Robijns S 

PROVIDER: S-EPMC11862926 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature