Preparation of high thermal stability MCM-41 in the low surfactant/silicon molar ratio synthesis systems

摘要

The preparation of a mesoporous molecular sieve MCM-41 both with bimodal framework and textural mesopores and with high thermal stability that results from a thicker wall has been achieved by decreasing surfactant/silicon ratio of synthesis gel. The resultant material retains porosity and large BET surface area even after thermal treatment at 1273 K for 1 h in air.