Synthesis And Characterization Of Two New Antimony Phosphates Co0,5alsb(PO4)3 And Mg0,5fesb(PO4)3
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| 1. | Title | Title of document | Synthesis And Characterization Of Two New Antimony Phosphates Co0,5alsb(PO4)3 And Mg0,5fesb(PO4)3 |
| 2. | Creator | Author's name, affiliation, country | H. Sinouh; Laboratoire de Chimie des Matériaux Solides, Faculté des Sciences Ben M’Sik Casablanca; Morocco |
| 2. | Creator | Author's name, affiliation, country | A. EL Bouari; Laboratoire de Chimie des Matériaux Solides, Faculté des Sciences Ben M’Sik; Morocco |
| 2. | Creator | Author's name, affiliation, country | S. Benmokhtar; Laboratoire de Chimie des Matériaux Solides, Faculté des Sciences Ben M’Sik; Morocco |
| 2. | Creator | Author's name, affiliation, country | L. Bih; Laboratoire de Physico-Chimie des Matériaux – LPCM, Faculté des Sciences et Techniques Errachidia; Morocco |
| 2. | Creator | Author's name, affiliation, country | A. Faik; CNRS-CEMHTI, 1D Av. de la Recherche Scientifique, 45071 Orleans Cedex 2; France |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | |
| 4. | Description | Abstract | Two new antimony phosphates Co0,5AlSb(PO4)3 and Mg0,5FeSb(PO4)3 were synthesized for the first time by the solid-state reaction method. Their crystal structures have been refined at room temperature from X-ray powder diffraction data using Rietveld method. Co0,5AlSb(PO4)3 crystallizes in the space group R-3c (N°167) (ah = 8.23±0.01Ǻ, ch = 21.94±0.02Ǻ). Mg0,5FeSb(PO4)3 crystallizes in the monoclinic space group P21/n (N°14) (am =11.54 Ǻ, bm = 8.83± 0.02 Ǻ, cm = 8.39± 0.01 Ǻ, β = 96.67°± 0.09). Raman and infrared spectra were recorded and assignments of the stretching and bending vibrations of the PO43- tetrahedra were made. The number of the peaks observed is in good agreement with that predicted by the factor group analysis of the R-3c et P21/n space group respectively. Vibrational spectral studies of two antimony phosphates were collected in-situ at room-pressure and at elevated temperatures, up to 430 oC. At elevated temperatures in air, Mg0,5FeSb(PO4)3 seems to be stable, but Co0,5AlSb(PO4)3 show a transition at 380°C and decomposes at 930°C. This result has been confirmed by differential scanning calorimetric study (DSC). |
| 5. | Publisher | Organizing agency, location | |
| 6. | Contributor | Sponsor(s) | |
| 7. | Date | (YYYY-MM-DD) | 21-03-2011 |
| 8. | Type | Status & genre | Peer-reviewed Article |
| 8. | Type | Type | |
| 9. | Format | File format | |
| 10. | Identifier | Uniform Resource Identifier | https://revues.imist.ma/index.php/MJCM/article/view/269 |
| 11. | Source | Title; vol., no. (year) | Moroccan Journal of Condensed Matter; Vol 12, No 2 (2010) |
| 12. | Language | English=en | en |
| 13. | Relation | Supp. Files | |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
| 15. | Rights | Copyright and permissions |
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