Engineering Mesopore Formation in Hierarchical Zeolites under High Hydrostatic Pressure

Tailoring the textural properties of porous materials is paramount importance to optimize their performance in a variety applications. To this end, critical synthesis parameters influencing crystallization and reorganization need be identified judiciously controlled. Although effect pressure on chemical transformations ubiquitously present, its impact fabricating with tailored physicochemical remains unexplored potential untapped. In work, we disclose detailed study effects high hydrostatic formation well-controlled intracrystalline mesopores ultrastable Y (USY) zeolite by so-called surfactant-templating method. The rate mesopore significantly increases upon elevating pressure, whereas average size mesopores─directed self-assembly surfactant─decreases. By simultaneously adjusting external selecting surfactants different lengths, have been able precisely control USY zeolite. Our findings clearly show that can used both accelerate engineer subnanometer precision. As second example, investigated MCM-41. results MCM-41, consistent our observations zeolite, further confirm use greatly affects behaviors amphiphilic molecules involved synthesis/modification materials. high-pressure approach represents an untapped opportunity for functional will likely yield new discoveries field.