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Title | Hydration-Induced Local Molecular Structures in Nano-Layered Clay Particles |
Authors |
Sato, K.
Numata, K. |
ORCID | |
Keywords |
Smectite Clay mineral Positronium |
Type | Article |
Date of Issue | 2013 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/30938 |
Publisher | Сумський державний університет |
License | |
Citation | K. Sato, K. Numata, J. Nano- Electron. Phys. 5 No 1, 01002 (2013) |
Abstract |
Positronium (Ps) annihilation spectroscopy and thermogravimetry and differential thermal analysis (TG-DTA) were conducted for synthetic smectite clay minerals to investigate local molecular structures induced by water adsorption and desorption. The TG curves indicate the weight loss of ~ 3.5 wt %, ~ 2.5 wt %, and ~ 2.0 wt % for saponite, hectorite, and stevensite due to dehydration, in accordance with DTA endothermic peaks around 332 K, 350 K, and 345 K. It is found based on the results of Ps lifetime spectroscopy that the presence of angstrom-scale open space is sensitively dependent on water adsorption and desorption in smectite clay minerals.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/30938 |
Appears in Collections: |
Журнал нано- та електронної фізики (Journal of nano- and electronic physics) |
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Sato K._Smectite.pdf | 448,79 kB | Adobe PDF | 15274568 |
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