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Nanoplatelets of Sodium Hectorite Showing Aspect Ratios of ≈20 000 and Superior Purity
Title data
Stöter, Matthias ; Kunz, Daniel A. ; Schmidt, Marko ; Hirsemann, Dunja ; Kalo, Hussein ; Putz, Bernd ; Senker, Jürgen ; Breu, Josef:
Nanoplatelets of Sodium Hectorite Showing Aspect Ratios of ≈20 000 and Superior Purity.
In: Langmuir.
Vol. 29
(29 January 2013)
Issue 4
.
- pp. 1280-1285.
ISSN 1520-5827
DOI: https://doi.org/10.1021/la304453h
Abstract in another language
Applying a combination of melt synthesis followed by long-term annealing a fluorohectorite is obtained which is unique with respect to homogeneity, purity, and particle size. Counterintuitively, the hectorite undergoes a disorder-to-order transition upon swelling to the level of the bilayer hydrate. Alkylammonium-exchanged samples show at any chain length only a single basal spacing corroborating a nicely homogeneous layer charge density. Its intracrystalline reactivity improves greatly upon annealing, making it capable to spontaneously and completely disintegrate into single clay lamellae of 1 nm thickness. Realizing exceptional aspect ratios of around 20,000 upon delamination, this synthetic clay will offer unprecedented potential as functional filler in highly transparent nanocomposites with superior gas barrier and mechanical properties.
Further data
Item Type: |
Article in a journal
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Refereed: |
Yes |
Institutions of the University: |
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I > Chair Inorganic Chemistry I - Univ.-Prof. Dr. Josef Breu Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III > Chair Inorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie > SFB 840 - TP A 6 Graduate Schools > Elite Network Bavaria > Struktur, Reaktivität und Eigenschaften Oxidischer Materialien Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III Research Institutions Research Institutions > Collaborative Research Centers, Research Unit Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie Graduate Schools Graduate Schools > Elite Network Bavaria |
Result of work at the UBT: |
Yes |
DDC Subjects: |
500 Science > 540 Chemistry |
Date Deposited: |
21 Mar 2018 07:58 |
Last Modified: |
21 Mar 2018 07:58 |
URI: |
https://eref.uni-bayreuth.de/id/eprint/9349 |
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