NDLI: Fabrication of layered double hydroxide spheres through urea hydrolysis and mechanisms involved in the formation

Content Provider	Springer Nature Link
Author	Wang, Jun Li, Dandan Yu, Xiang Zhang, Milin Jing, Xiaoyan
Copyright Year	2010
Abstract	The goal of this study is to prepare hydrotalcite pellets and validate their potential utility in catalysts and catalysts support. Hydrotalcite pellets were synthesized by urea hydrolysis. Urea hydrolysis can provide both carbonate as the intercalated anion and hydroxyl anions to form Mg–Al layered double hydroxide (LDH) with carbonate intercalation. Urea hydrolysis was also used to generate NH3 which plays a critical role in the process of synthesis hydrotalcite pellets. Mechanism of the formation hydrotalcite pellets was also discussed. The as-prepared samples were well characterized by X-ray diffraction, scanning electron microscopy, transmission electronic microscope, N2 adsorption/desorption, and Fourier transform infrared spectroscopy, respectively. The results revealed that the hydrotalcite pellets were well-crystallized and formed by self-assembly of hexagonal platelets LDHs. The present work suggests that it is possible to grow hydrotalcite pellets directly through one-step aqueous solution-phase chemical route under controlled conditions.
Starting Page	1411
Ending Page	1418
Page Count	8
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	288
Issue Number	14
e-ISSN	14351536
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-08-15
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mg–Al hydrotalcite Urea hydrolysis Pellet Mechanism Food Science Physical Chemistry Characterization and Evaluation of Materials Soft and Granular Matter, Complex Fluids and Microfluidics Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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