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Nanoplatelets of Sodium Hectorite Showing Aspect Ratios of ≈20000 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 ≈20000 and Superior Purity.
In: Langmuir. Vol. 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 in respect to homogeneity, purity and particle size. Counter intuitively, 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 homogenous 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. Realizing exceptional aspect ratios of around 20000 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
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry I > Chair Anorganic Chemistry I - Univ.-Prof. Dr. Josef Breu
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry III > Chair Anorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie > SFB 840 - TP A 6
Graduate Schools > Elite Network Bavaria
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 Anorganic Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry III
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Graduate Schools
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 29 Mar 2018 09:32
Last Modified: 29 Mar 2018 09:32
URI: https://eref.uni-bayreuth.de/id/eprint/43172