Jm. Trillo et al., MONTMORILLONITES INTERCALATED WITH AL(III), LA(III) AND ALUMINA PILLARS - STRUCTURAL ASPECTS AND REACTIVITY, Solid state ionics, 63-5, 1993, pp. 457-463
The location, environment and availability of the interlamellar specie
s in modified layered silicates have been investigated using two montm
orillonites selected with different charge deficit distributions. A st
ructural study has revealed release of protons and further migration t
o the lattice as thermal treatments are performed. The proton availabi
lity has been examined through a catalytic reaction, all the modified
samples showing similar activities in this test. A possible explanatio
n for this levelling effect has been suggested.