Synthesis of novel marigold-like carbonate-type Mg–Al layered double hydroxide micro-nanostructures via a two-step intercalation route

Novel marigold-like carbonate-type Mg-Al layered double hydroxide (MgAl-CO3-LDH) micro-nanostructures with surface curved and intercrossed nanosheets were synthesized successfully via a two-step intercalation route, which involved a primary intercalation of dodecylsulfonate (DS-) anion through urea...

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Bibliographic Details
Published inMaterials letters Vol. 116; pp. 203 - 205
Main Authors Yang, Yang, Fan, Guoli, Li, Feng
Format Journal Article
LanguageEnglish
Published 01.02.2014
Subjects
Anion exchanging
Exchange
Hydroxides
Intercalation
Nanomaterials
Nanostructure
Roasting
Synthesis
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Summary:Novel marigold-like carbonate-type Mg-Al layered double hydroxide (MgAl-CO3-LDH) micro-nanostructures with surface curved and intercrossed nanosheets were synthesized successfully via a two-step intercalation route, which involved a primary intercalation of dodecylsulfonate (DS-) anion through urea hydrolysis, followed by exchanging interlayer DS- anions with anions in the presence of a cationic type surfactant (hexadecyl trimethyl ammonium bromide). The possible formation mechanism of such MgAl-CO3-LDH micro-nanostructure was proposed tentatively. Furthermore, the resulting Mg-Al mixed metal oxides obtained by calcining MgAl-CO3-LDH at 500 degree C still maintain the three-dimensional marigold-like morphology to some extent, indicative of the high thermal stability of micro-nanostructures. The findings in this work may provide a feasible approach for the special morphosynthesis of carbonate-type LDH nanomaterials.
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ISSN:0167-577X
DOI:10.1016/j.matlet.2013.11.005