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Ion Transport in Alumina-Pillared Zirconium Phosphate

  • C. Criado (a1), J.R. Ramos-Barrado (a1), P. Maireles-Torres (a2), P. Oliverapastor (a2), A. Jimenez-Lopez (a2) and E. Rodriguez-Castellon (a2)...

Abstract

A.c. conductivity of a novel large-pore alumina-pillared zirconium phosphate and some lithium ion exchanged samples have been measured by an impedance method. These materials have a conductivity in the range 10-5 to 10-9 Ω-1cm-1 higher than those of alumina-pillared tin phosphate and its lithium derivatives. The electrical behaviour of the pillared zirconium phosphates fits to an equivalent circuit composed by two subcircuits in parallel with a condenser. In a temperature interval (200-500°C), lithium ions are charge carriers and the conductivity increases when heating with activation energies between 0.99 and 1.22 eV.

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1. Maireles-Torres, P., Olivera-Pastor, P., Rodríguez-Castellón, E., Jiménez-López, A., Alagna, L. and Tomlinson, A.A.G., J. Mat. Chem. 1(3), 319 (1991).
2. Jiménez-López, A., Maireles-Torres, P., Olivera-Pastor, P., Rodriguez-Castellón, E. and Tomlinson, A.A.G. to be published in Multifunctional Mesoporous Inorganic Solids, NATO-ASI Series, Sintra, Portugal, 1992.
3. Guerrero-Ruiz, A., Rodríguez-Ramos, J., Fierro, J.L.G., Jimenez-Lépez, A., Olivera-Pastor, P. and Maireles-Torres, P., Applied Catal. In press.
4. Maireles-Torres, P., Olivera-Pastor, P., Rodríguez-Castellón, E., Jiménez-López, A.. Tomlinson, A.A.CG, Keyehan, Y. and Pérez, G., “Materiali porosi a base di fosfati a strati pilastrati con alumina e relativo uso nella separazione dell'acqua triziata” Italian Patent RM92A000376 (1992).
5. Criado, C., Ramos-Barrado, J.R., Maireles-Torres, P., Olivera-Pastor, P., Rodríguez-Castellón, E. and Jiménez-López, A., Solid State of Ionics, In press.
6. Jones, D. J., Leloup, J.M., Roziere, J. and Ding, Y., Solid State of lonics, in press-
7. Maireles-Torres, P., Olivera-Pastor, P., Rodríguez-CastellÓn, E., Jiménez-López, A., Tomlinson, A.A.G., J. Mat. Chem. 1(5), 739 (1991).

Ion Transport in Alumina-Pillared Zirconium Phosphate

  • C. Criado (a1), J.R. Ramos-Barrado (a1), P. Maireles-Torres (a2), P. Oliverapastor (a2), A. Jimenez-Lopez (a2) and E. Rodriguez-Castellon (a2)...

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