Synthesis, structure and morphology of organic layered double hydroxide (LDH) hybrids: Comparison between aliphatic anions and their oxygenated analogs

Xu, ZP and Braterman, PS (2010) Synthesis, structure and morphology of organic layered double hydroxide (LDH) hybrids: Comparison between aliphatic anions and their oxygenated analogs. Applied Clay Science, 48 1-2: 235-242. doi:10.1016/j.clay.2009.11.009


Author Xu, ZP
Braterman, PS
Title Synthesis, structure and morphology of organic layered double hydroxide (LDH) hybrids: Comparison between aliphatic anions and their oxygenated analogs
Journal name Applied Clay Science   Check publisher's open access policy
ISSN 0169-1317
1872-9053
Publication date 2010-03-01
Year available 2010
Sub-type Article (original research)
DOI 10.1016/j.clay.2009.11.009
Open Access Status Not Open Access
Volume 48
Issue 1-2
Start page 235
End page 242
Total pages 8
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Language eng
Abstract Intercalation of organic anions is an important aspect of layered double hydroxide (LDH) chemistry in the development of polymer-LDH composites. In the research, we intercalated short and lengthy straight-chain organic anions with the carbon number up to 50 into the interlayer of MgAl and ZnAl-LDHs. We also noted that the packing mode of the straight-chain organic species and the basal spacing are somewhat predictable. In most cases, the hydrocarbon chain (or oxygenated) is packed in an anti-parallel inter-penetrating style at an angle of around 55°. Only when the hydrocarbon chain contains 14-18 carbons and the supplied amount of the organic anion is more than the anion exchange capacity, a so-called bi-layer packing mode is also observed. Due to the variety in the structure and property of organic hydrocarbon chains, the organo-LDH crystallites show various morphologies, where the hydrophobic forces are expected to play an important role in determining the crystallite shape. © 2009 Elsevier B.V. All rights reserved.
Keyword Layered double hydroxide
Intercalation chemistry
Oxygenated surfactant anion
Packing mode
Morphology
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID 1154-B
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Sun, 11 Apr 2010, 10:09:58 EST