| Autor: |
McKelvy, M. J., Sharma, R., Chizmeshya, A. V. G., Carpenter, R. W., Streib, K. |
| Zdroj: |
Chemistry of Materials; March 2001, Vol. 13 Issue: 3 p921-926, 6p |
| Abstrakt: |
Lamellar dehydroxylation mechanisms are important in understanding highly reactive nanocrystal oxide formation as well as a variety of applied lamellar hydroxide reaction processes. These mechanisms have been observed for the first time via in situ nanoscale imaging for the prototype lamellar hydroxide: Mg(OH)2. Environmental-cell, dynamic high-resolution transmission electron microscopy was combined with advanced computational modeling in discovering that lamellar nucleation and growth processes govern dehydroxylation. The host lamella can guide the formation of a solid solution series of lamellar oxyhydroxide intermediates en route to oxide formation. This investigation opens the door to a deeper, atomic-level understanding of lamellar dehydroxylation reaction processes, nanocrystal oxide formation, and the range of potential new intermediate materials and third component reaction pathways they can provide. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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