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

被引：79
作者：
Das, J.
Das, D.
Parida, K. M. [1 ]
机构：
[1] Reg Res Lab, CSIR, Bhubaneswar 751013, Orissa, India
[2] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2006年 / 301卷 / 02期
关键词：
HTlcs; co-precipitation; XRD; TG/DTA; N-2 adsorption-desorption studies; memory effect;
D O I：
10.1016/j.jcis.2006.05.014
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hydrotalcite-like compounds (HTIcs) containing Mg2+, Al3+, and Ce3+ 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. (c) 2006 Elsevier Inc. All rights reserved.
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收藏
页码：569 / 574
页数：6
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