Highly crystalline mesoporous SSZ-13 zeolite obtained via controlled post-synthetic treatment.

ABSTRACT: The generation of mesoporosity in SSZ-13 zeolite by means of desilication via post alkaline treatment normally results in severe damage to the microporous framework hence giving an undesirable decline in catalytic performance. Herein, we propose a post-synthetic desilication treatment that is controllable with an aim to preserve the high crystallinity of SSZ-13 zeolite during the formation of mesopores. The extent of desilication in alkaline media is controlled by deliberately leaving the organics within SSZ-13 frameworks as they can effectively hinder the attack of hydroxyl ions on siloxane bonds. The resulting SSZ-13 exhibits substantial development of mesoporosity with preserved high crystallinity and microporosity that can then be used to relieve the mass transport issues and le

SUBMITTER: Wardani MK 

PROVIDER: S-EPMC9059330 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature