Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session S71: Defect Engineering and Interfacial Effects in 2D Materials II
8:00 AM–10:12 AM,
Thursday, March 17, 2022
Room: Hyatt Regency Hotel -Jackson Park C
Sponsoring
Unit:
DMP
Chair: Salvador Barraza-Lopez, University of Arkansas
Abstract: S71.00008 : Nanorafts - clay nanosheets decorated with magnetic nanoparticles*
9:48 AM–10:00 AM
Presenter:
Barbara Pacakova
(Norwegian Univ Tech (NTNU))
Authors:
Barbara Pacakova
(Norwegian Univ Tech (NTNU))
Paulo Henrique O Michels Brito
(Department of Physics, Norwegian University of Science and Technology – NTNU, Trondheim, Norway)
Leander Michels
(Department of Physics, Norwegian University of Science and Technology – NTNU, Trondheim, Norway)
Ville Liljestrom
(Aalto University, Espoo, Finland)
Daniel Wagner
(Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, Universitätstr. 30, 95440 Bayreuth, Germany)
Koiti Araki
(University of Sao Paulo – USP, Sao Paulo, Brazil)
Josef Breu
(Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, Universitätstr. 30, 95440 Bayreuth, Germany)
Kenneth D Knudsen
(Institute for Energy Technology – IFE, Kjeller, Norway)
Jon Otto Fossum
(Norwegian Univ Tech (NTNU))
Functionalized 2D sheets can serve as basic bulding blocks for fabrication of larger structures targeting metamaterial with desired properties, for example via self-assembly, hence implementation of additional functionality directly into the 2D sheets is of high importance.
We present here an efficient approach of decorating 2D clay nanosheets in liquid phase with magnetic nanoparticles from one side, based on functionalized iron oxide nanoparticles and high-aspect ratio sheets of insulating transparent synthetic clay, sodium fluorohectorite. Efficiency of the process is confirmed by several complementary characterization methods, including TGA, X-ray diffraction (SAXS/WAXS), spectroscopy (FTIR, UV-VIS). Particle layout on nanosheets is determined by microscopy techniques (SEM and AFM). Options of tuning particle density on nanosheets and particle geometrical arrangement in a view of possible applications will be discussed
1. Chem Rev. 2015, 115(7): 2483–2531.
2. Chem. Rev. 2017, 117 (9): 6225-6331.
3. Nano Lett.2012, 122:617-621
4. Progress in Materials Science 2017, 90: 75–127.
*This work was funded by the Research Council of Norway Nano2021 project number 250619.
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