Evaluation of talc morphology using FTIR and H/D substitution
| Autor: | Jocelyne Ferret, François Martin, Pierre Micoud, P. de Parseval, G. Fourty, Stefano Salvi, Sabine Petit, J. P. Fortune, S. Pejo-Soucaille, Eric Ferrage |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Morphology (linguistics)
Lateral surface Chemistry Scanning electron microscope Analytical chemistry Infrared spectroscopy 020101 civil engineering 02 engineering and technology 010502 geochemistry & geophysics Talc 01 natural sciences 0201 civil engineering Geochemistry and Petrology Specific surface area medicine Particle Fourier transform infrared spectroscopy 0105 earth and related environmental sciences medicine.drug |
| Zdroj: | Clay Minerals. 38:141-150 |
| ISSN: | 1471-8030 0009-8558 |
| DOI: | 10.1180/0009855033820084 |
| Popis: | Deuteration (H/D substitution at 200ºC) was performed on powders of two ground talcs of different particle shapes (different basal/lateral surface ratios). Results indicate that the deuteration process is only efficient on lateral talc surfaces, and suggest that the hydrogens located in the hexagonal ring of the talc basal surfaces are not exchanged. The FTIR spectra collected from the two talc samples show that it is possible to discriminate between particles with the same specific surface area but with different basal/lateral surface ratios using the deuteration process. |
| Databáze: | OpenAIRE |
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