Stabilization of Co2+ in layered double hydroxides (LDHs) by microwave-assisted ageing

被引：65
|
作者：
Herrero, M. [1 ]
Benito, P. [1 ]
Labajos, F. M. [1 ]
Rives, V. [1 ]
机构：
[1] Univ Salamanca, Dept Quim Inorgan, E-37008 Salamanca, Spain
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2007年 / 180卷 / 03期
关键词：
hydrotalcite; microwave; layered double hydroxides; cobalt;
D O I：
10.1016/j.jssc.2006.12.011
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Co-containing layered double hydroxides at different pH have been prepared, and aged following different routes. The solids prepared have been characterized by element chemical analysis, powder X-ray diffraction, thermogravimetric and differential thermal analyses (both in nitrogen and in oxygen), FT-IR and Vis-UV spectroscopies, temperature-programmed reduction and surface area assessment by nitrogen adsorption at -196 degrees C. The best conditions found to preserve the cobalt species in the divalent oxidation state are preparing the samples at controlled pH, and then submit them to ageing under microwave irradiation. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码：873 / 884
页数：12
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