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J Colloid Interface Sci. 2006 Sep 15;301(2):569-74. Epub 2006 Jun 15.

Preparation and characterization of Mg-Al hydrotalcite-like compounds containing cerium.

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1
Regional Research Laboratory (CSIR), Bhubaneswar 751013, Orissa, India.

Abstract

Hydrotalcite-like compounds (HTlcs) containing Mg(2+), Al(3+), and Ce(3+) in the hydroxide layer and with carbonate as charge-balancing anion have been prepared by a co-precipitation (at constant pH) method. The Al/Ce ratio in the final product depends on the concentration in the initial solution. The crystallinity of the layered materials decreases with the increase in cerium content, probably, due to the distortions introduced by the large difference in the ionic radii of the cations. All the synthesized materials were characterized by XRD, FT-IR spectroscopy and TG/DTA. The textural properties were determined from low-temperature nitrogen adsorption-desorption measurements.

PMID:
16780859
DOI:
10.1016/j.jcis.2006.05.014
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