TY - JOUR
T1 - The textural properties of iron substituted hydrotalcites obtained in a tailored aqueous-organic synthesis medium
AU - Carja, Gabriela
AU - Obata, Hiromi
AU - Kameshima, Yoshikazu
AU - Okada, Kiyoshi
N1 - Funding Information:
The financial support of CNCSIS grant 229-4/2006 and the CEEX contract NANOAGMAM 14/2005 is gratefully acknowledged.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2007/1/5
Y1 - 2007/1/5
N2 - Iron containing layered double hydroxides with specific textural properties are synthesized by using tailored compositions of an aqueous-organic synthesis medium as a controlled variable synthesis parameter. SEM analysis points out that the nature of the organic solvent and the aqueous-organic solvent ratio contribute in establishing not only different sizes and/or shapes of the hydrotalcite-like particles, but also distinct features of their organisation and interconnection pattern. As a consequence, interparticle voids with different characteristics emerge giving rise to specific mesoporous properties of the studied samples. The SBET value is 41 m2/g for the sample synthesized in water/glycerol/cyclohexane, reaches 108 m2/g for the sample obtained in water/glycerol/ethanol whereas the corresponded Vp value increases from 0.24 ml/g to 0.41 ml/g respectively. The possibility to shape the micromorphology properties of layered double hydroxides can contribute in designing and obtaining well established nanoporous properties for these materials.
AB - Iron containing layered double hydroxides with specific textural properties are synthesized by using tailored compositions of an aqueous-organic synthesis medium as a controlled variable synthesis parameter. SEM analysis points out that the nature of the organic solvent and the aqueous-organic solvent ratio contribute in establishing not only different sizes and/or shapes of the hydrotalcite-like particles, but also distinct features of their organisation and interconnection pattern. As a consequence, interparticle voids with different characteristics emerge giving rise to specific mesoporous properties of the studied samples. The SBET value is 41 m2/g for the sample synthesized in water/glycerol/cyclohexane, reaches 108 m2/g for the sample obtained in water/glycerol/ethanol whereas the corresponded Vp value increases from 0.24 ml/g to 0.41 ml/g respectively. The possibility to shape the micromorphology properties of layered double hydroxides can contribute in designing and obtaining well established nanoporous properties for these materials.
KW - Hydrotalcite
KW - Layered double hydroxides
KW - Mesoporous properties
KW - Textural characteristics
KW - Water-glycerol
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U2 - 10.1016/j.micromeso.2006.08.026
DO - 10.1016/j.micromeso.2006.08.026
M3 - Article
AN - SCOPUS:33845219179
VL - 98
SP - 150
EP - 155
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
IS - 1-3
ER -