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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Prevot, Vanessa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2020Electrochromic Thin Films Based on NiAl Layered Double Hydroxide Nanoclusters for Smart Windows and Low-Power Displayscitations
- 2020Porous Layered Double Hydroxide/TiO2 Photocatalysts for the Photocatalytic Degradation of Orange IIcitations
- 2020Confined Growth of NiAl-Layered Double Hydroxide Nanoparticles Within Alginate Gel: Influence on Electrochemical Propertiescitations
- 2019Synthesis and Structural Characterization of a Pure ZnAl 4 (OH) 12 (SO 4 )·2.6H 2 O Layered Double Hydroxidecitations
- 2019Synthesis and Structural Characterization of a Pure ZnAl 4 (OH) 12 (SO 4 )·2.6H 2 O Layered Double Hydroxidecitations
- 2018Controlling the Morphology of Film-Forming, Nanocomposite Latexes Containing Layered Double Hydroxide by RAFT-Mediated Emulsion Polymerizationcitations
- 2016High-Density Protein Loading on Hierarchically Porous Layered Double Hydroxide Composites with a Rational Mesostructurecitations
- 2016Layered double hydroxides: Efficient fillers for waterborne nanocomposite films.citations
- 2016Intercalation and structural aspects of macroRAFT agents into MgAl layered double hydroxides.citations
- 2016High-Density Protein Loading on Hierarchically Porous Layered Double Hydroxide Composites with a Rational Mesostructure.citations
- 2015How the Method of Synthesis Governs the Local and Global Structure of Zinc Aluminum Layered Double Hydroxidescitations
- 2015How the Method of Synthesis Governs the Local and Global Structure of Zinc Aluminum Layered Double Hydroxidescitations
- 2015Bacteria encapsulated in Layered Double Hydroxides: an efficient Bionanohybrid for remediation processes.citations
- 2012An insight into the electrochemical behavior of Co/Al Layered Double Hydroxide thin films prepared by electrodeposition
- 2012Photocatalytic behavior of nanosized TiO2 immobilized on layered double hydroxides by delamination/restacking process
- 2012Synthesis Route to Supported Gold Nanoparticle Layered Double Hydroxides as Efficient Catalysts in the Electrooxidation of Methanol.
Places of action
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article
How the Method of Synthesis Governs the Local and Global Structure of Zinc Aluminum Layered Double Hydroxides
Abstract
Seven zinc aluminum layered double hydroxides (ZnAl LDHs), [Zn1-xAlx (OH)2Ax,nH2O] A = NO3-, Cl- or CO32-, prepared by the urea and co-precipitation synthesis methods were investigated to determine how synthesis parameters (pH, metal ion concentration and post synthesis treatment) affect the local (atomic) and long (global) range structure of the LDH product. Sample composition, purity, crystal defects and other structural aspects of the LDH products were obtained from powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), Micro-Raman, elemental analysis, and solid state 1H, 27Al, and 67Zn NMR spectroscopy. The urea method results in LDHs, which on the global scale are highly crystalline LDHs, but disordered on the local scale. The disorder is correlated with the presence of Al-rich phases, which are undetected by bulk techniques (TEM, PXRD), as they are either defects within the LDH particles or separate phase(s) associated with LDHs. In contrast, samples prepared by co-precipitation with careful pH control and hydrothermal treated have high local order and good crystallinity (large particle size). Our results show that both local (NMR) and bulk techniques are needed to assess the composition of LDHs, as the conventional PXRD and TEM analysis of LDHs failed to identify the many structural defects and/or amorphous phases present.