Synthesis of Na-free high-silica zeolite Y with excellent catalytic performance

Key Points

• To synthesize a Na-free high-silica zeolite Y with excellent catalytic properties for carbonylation reactions.
• Synthesis using a top-down strategy
• Incorporation of TBAOH and TMAOH as structure-directing agents
• Production of nanocrystals with a size of 50-100 nm
• Control of Na content to ultralow levels
• Achieved high yield of approximately 60%
• Resulting zeolite had an SiO2/Al2O3 ratio of 20.4
• Demonstrated enhanced catalytic performance for dimethoxymethane carbonylation
• Exhibited a Na/Al ratio of 0.02 and homogeneous framework Al distribution