Nanostructured Aluminium Hydroxyfluorides Derived from β-AlF3

作者: Damien Dambournet , Alain Demourgues , Charlotte Martineau , Stanislas Pechev , Jérôme Lhoste

DOI: 10.1021/CM702603B

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摘要: Microwave-assisted synthesis has been applied for the preparation of aluminum hydroxyfluorides derived from β-AlF3. In course obtaining high-surface-area and homogeneous nanocrystallites, several key parameters have adjusted. A relationship between OH/F molar ratio stabilized allotropic forms pointed out. The surface area monitored depending on water/isopropanol volume ratio. microstructural properties as-prepared material thoroughly investigated highlighting X-ray line broadening arising strains size effects. It concluded diffraction data refinements TEM results that prepared crystallites possess a platelet shape with an average particle 15 nm associated high 82 m2 g−1. occurrence hydroxyl groups inside network detected by FTIR spectroscopy considered angles bond distances are probably located in peculiar crystallographic sites, i.e., 8f (F1) a...

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