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What is MCM-41 Synthesis with Low Si/Al Ratios about?

The document summarizes the synthesis of MCM-41 materials with low Si/Al ratios. Transmission electron microscopy shows that in addition to the MCM-41 phase, an aluminum-rich dense phase is present. Energy dispersive X-ray analysis finds the dense phase contains 15-20% aluminum, while the MCM-41 phase contains 3-8% aluminum. This dense phase accounts for most of the aluminum in the synthesized materials, resulting in overall low bulk Si/Al ratios despite the MCM-41 phase containing higher Si/Al. Powder X-ra

Author

Ralentri Pertiwi

Language

EN