The studies of increased basal interplanar spacing, pore distribution and surface area, mesoporous of a clay obtained from vermiculite precursor were obtained by intercalation of cationic polyhydroxy oligomer Al13 and a mixture (La xAl13-x) obtained by doping with lanthanum, followed by calcination to form the pillars. The characterizations of the samples were performed by X-ray diffraction, Mössbauer spectroscopy, nuclear magnetic resonance solid state (27Al MAS-NMR) and N2 isotherms (BET). The presence of lanthanum in the structure of vermiculite resulted in the increase of its area and porosity.
lanthanum; mesoporous clay; 27Al MAS-NMR; BET
