R. Schmidt et al., SYNTHESIS OF A MESOPOROUS MCM-41 MATERIAL WITH HIGH-LEVELS OF TETRAHEDRAL ALUMINUM, Journal of the Chemical Society, Chemical Communications, (12), 1994, pp. 1493-1494
A crystalline mesoporous member of the MCM-41 family has been synthesi
sed with a Si:Al ratio as low as 8.5:1, without observing octahedral a
luminium.