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Preparation of Lithium Aluminum Layered Double Hydroxide from Ammonium Dawsonite and Lithium Carbonate

Published online by Cambridge University Press:  20 December 2012

C. A. Contreras Soto ,
E. Ramos-Ramírez ,
V. Reyes Zamudio  and
J. I. Macías
C. A. Contreras Soto*
Affiliation:
Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química, Noria alta s/n, Col. Noria alta, Guanajuato, Gto., México. Tel.: (+05) 473-73 20006 Ext. 6022
E. Ramos-Ramírez
Affiliation:
Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química, Noria alta s/n, Col. Noria alta, Guanajuato, Gto., México. Tel.: (+05) 473-73 20006 Ext. 6022
V. Reyes Zamudio
Affiliation:
Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química, Noria alta s/n, Col. Noria alta, Guanajuato, Gto., México. Tel.: (+05) 473-73 20006 Ext. 6022
J. I. Macías
Affiliation:
Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química, Noria alta s/n, Col. Noria alta, Guanajuato, Gto., México. Tel.: (+05) 473-73 20006 Ext. 6022
*
*E-mail: cesarcon@ugto.mx
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Abstract

Aluminum lithium hydroxide carbonate hydrate, also known as Al/Li layered double hydroxide or Al-Li hydrotalcite-like compound [Al2Li(OH)6]2CO3•nH2O, was prepared by reaction of lithium carbonate with ammonium dawsonite [NH4Al(OH)2CO3]. The reaction of ammonium dawsonite with a lithium carbonate satured solution at different temperatures and lithium carbonate concentrations was studied. The obtained solids were characterized by differential thermal analysis (DTA), thermogravimetry (TGA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). By this method, crystalline Li/Al LDH [Al2Li(OH)6]2CO3·3H2O can be obtained at 60 °C and 4 h reaction time.

Keywords

AlLichemical synthesis
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1481: Symposium 2D – Structural and Chemical Characterization of Metals, Alloys and Compounds—2012 , 2012 , pp. 29 - 36
Copyright
Copyright © Materials Research Society 2012

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References

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