Synthesis of Zn‐doped talc in hydrothermal atmosphere

作者: M. Catalano , E. Belluso , D. Miriello , E. Barrese , A. Bloise

DOI: 10.1002/CRAT.201300290

关键词:

摘要: Zn-doped talc were synthesized under hydrothermal conditions at constant reaction time and pressure of 160 hours 2 kbar respectively, three different temperatures (300, 500 650 °C) with pH-values 5 7. The starting materials run products characterized by X-ray powder diffraction (XRPD), scanning electron microscopy annexed energy-dispersive spectrometry (SEM-EDS), differential calorimetry thermogravimetric analysis (DSC-TG) Fourier transform infrared (FT-IR). results showed that the temperature, pH-value mixture amount zinc in affected growth talc. When low temperature presents crystallinity, flawed morphology but higher content its lattice. A thermal treatment at, or above 500 °C allowed a significant flaw reduction morphology, crystallinity lower dopant. large amounts Zn present mixtures, grew small size poorly shaped. effect doping on some chemical/physical characteristics was also discussed.

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