CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishZn-doped talc were synthesized under hydrothermal conditions at constant reaction time and pressure of 160 hours and 2 kbar respectively, at three different temperatures (300, 500 and 650 °C) with pH-values of 5 and 7. The starting materials and run products were characterized by X-ray powder diffraction (XRPD), scanning electron microscopy with annexed energy-dispersive spectrometry (SEM-EDS), differential scanning calorimetry thermogravimetric analysis (DSC-TG) and Fourier transform infrared (FT-IR). The results showed that the temperature, pH-value of the reaction mixture and amount of zinc in the starting mixture affected the growth of the Zn-doped talc. When synthesized at low temperature talc presents low crystallinity, flawed morphology but higher content in zinc in its lattice. A thermal treatment at, or above 500 °C allowed a significant flaw reduction in talc morphology, a higher crystallinity and a lower content in dopant. When large amounts of Zn were present in the starting mixtures, Zn-doped talc grew small in size and poorly shaped. The effect of Zn doping on some chemical/ physical characteristics of the synthesized talc was also discussed.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
| Titolo: | Synthesis of Zn-doped talc in hydrothermal atmosphere | |
| Autori: | ||
| Data di pubblicazione: | 2014 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/20.500.11770/137738 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/20.500.11770/137738
Copyright © 2021