Preparation of large platy particles of Co-Al layered double hydroxides
Kayano, Mihoko (Waseda University. Graduate School of Science and Engineering)
Ogawa, Makoto (Waseda University. Department of Earth Sciences)

Date:	2006
Abstract:	Cobalt (II) and Al (III) layered double hydroxides were precipitated from homogeneous solutions using urea hydrolysis under hydrothermal conditions. The particle sizes were controlled successfully by changing the reaction temperature and period. It was found that larger particles formed by reactions at lower temperatures over longer reaction periods because the slow urea hydrolysis at lower temperatures suppresses the formation of nuclei in the solution. When the reaction was conducted at 60°C for 100 days, particles >40 μm wide were obtained.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Hydrothermal Synthesis ; Layered Double Hydroxides ; Particle-size Distribution ; Urea Hydrolysis
Published in:	Clays and Clay Minerals, Vol. 54, Núm. 3 (2006) , p. 382-389, ISSN 1552-8367

DOI: 10.1346/CCMN.2006.0540309

8 p, 1.5 MB  UAB restricted access

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