Skip to main content Accessibility help
×
Home

Synthesis and Characterization of Ln/Al Pillared Clays

  • A. López-Ortega (a1), J. M. Domínguez (a1), A. Rojas-Hremández (a2), A. Benitez-Patricio (a3) and M. Salmón (a1)...

Abstract

La3+ −Al3+ and Ce3+ −A13+ pillar precursors were synthesized and intercalated in swelling montmorillonite type clays. 27Al-NMR and 139La-NMR spectra do not confirm chemical interaction between Al and La ions in solution, but after pillaring and calcination (400°C) d-spacings in the range 18.5 Å−20.5 Å indicate indeed a strong interaction between the Al-La species. Also, Ce4+ (Sulfate) cations do interact with Al3+ in the pillar-precursor-solution, into the pH interval 2.78≤p.H ≤3.99.

Copyright

References

Hide All
(1).- Ocelli, M.L.; Psaras, D.; Suib, S.L.. J Catal. 96,363 (1985).
(2).- Rosa-Brussin, M.F., Catal.-Rev.- Sci. Eng., 37 (1), 1100 (1985).
(3).- Ramos-Galván, C.E.; Sandoval-Robles, G.; Casttillo-Mares, A. and Dominguez, J.M., Applied Catal., (1996) In Press.
(4).- Occelli, M.L: in “Fluid Catalytic Craking II”, ACS Synp. Ser. 140. 452, Eds., M.L. Ocelli; 1991 (343–363).
(5).- Plea, D., Borg, F., Gatiman, L. and Fripiat., J. J. Amer. Chem. Soc. 107, 2362 (1985).
(6).- Ocelli, M.L., Dominguez, J.M. and Eckert., H. J. Catal., 141 (1993) 510523.
(7).- Guan, J., Min, E. and Yu, Z., U.S. Patent 4,757,040 (1987).
(8).- Tokarz, M. and Shabtai, J., Clays and Clays Minerals, vol 3, Ho. 2 (1985) 8997.
(9).- Mc Cauley, J.R., U.S. Patent 4,952,544 (1990).
(10).- Caballero, L., Dominguez, J.M., de los Santos, J.L., Montoya, A. and Navarrete, J., in “Synthesis of Microporous Metrials: Zeolites, clays and Nanostructures, Eds Occelli, M., Dekker, M.. N.Y. (1996). Chpt. 30.

Synthesis and Characterization of Ln/Al Pillared Clays

  • A. López-Ortega (a1), J. M. Domínguez (a1), A. Rojas-Hremández (a2), A. Benitez-Patricio (a3) and M. Salmón (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed