Preparation and characterisation of tungstate scheelite structured nanoparticles
A series of tungstate scheelite structured MWO 4 (M=Ca, Sr, Pb and Ba) were synthesised using the sucrose solution evaporation method. Characterisation of these materials revealed that nanoparticles were formed, with the calcination temperature >400°C. The nanoparticle powders formed are cry...
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| Format: | Article |
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2011
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| author | Zawawi, S.M.M. Yahya, R. Hassan, A. Daud, M.N. |
| author_facet | Zawawi, S.M.M. Yahya, R. Hassan, A. Daud, M.N. |
| author_sort | Zawawi, S.M.M. |
| collection | UM |
| description | A series of tungstate scheelite structured MWO 4 (M=Ca, Sr, Pb and Ba) were synthesised using the sucrose solution evaporation method. Characterisation of these materials revealed that nanoparticles were formed, with the calcination temperature >400°C. The nanoparticle powders formed are crystalline and exist in its pure phase. It is found that the degree of crystalline products is low with the decrease in ionic radius (Ca<Sr<Pb<Ba), and also, diffraction peaks at the plane (112), (004) and (204) are shifted to lower angles (2θ) in accordance to the reduction in dhkl spacing. The S BET value of CaWO 4 gave the highest surface area (277·53 m 2 g -1) in the observed nanosize grain obtained from the field emission scanning electron microscopy image. |
| first_indexed | 2024-03-06T05:17:03Z |
| format | Article |
| id | um.eprints-6745 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:17:03Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | um.eprints-67452014-12-11T06:46:52Z http://eprints.um.edu.my/6745/ Preparation and characterisation of tungstate scheelite structured nanoparticles Zawawi, S.M.M. Yahya, R. Hassan, A. Daud, M.N. QD Chemistry A series of tungstate scheelite structured MWO 4 (M=Ca, Sr, Pb and Ba) were synthesised using the sucrose solution evaporation method. Characterisation of these materials revealed that nanoparticles were formed, with the calcination temperature >400°C. The nanoparticle powders formed are crystalline and exist in its pure phase. It is found that the degree of crystalline products is low with the decrease in ionic radius (Ca<Sr<Pb<Ba), and also, diffraction peaks at the plane (112), (004) and (204) are shifted to lower angles (2θ) in accordance to the reduction in dhkl spacing. The S BET value of CaWO 4 gave the highest surface area (277·53 m 2 g -1) in the observed nanosize grain obtained from the field emission scanning electron microscopy image. 2011 Article PeerReviewed Zawawi, S.M.M. and Yahya, R. and Hassan, A. and Daud, M.N. (2011) Preparation and characterisation of tungstate scheelite structured nanoparticles. Materials Research Innovations, 15 (SUPPL.). S97-S100. ISSN 14328917 , DOI https://doi.org/10.1179/143307511X13031890748173 <https://doi.org/10.1179/143307511X13031890748173>. 10.1179/143307511X13031890748173 |
| spellingShingle | QD Chemistry Zawawi, S.M.M. Yahya, R. Hassan, A. Daud, M.N. Preparation and characterisation of tungstate scheelite structured nanoparticles |
| title | Preparation and characterisation of tungstate scheelite structured nanoparticles |
| title_full | Preparation and characterisation of tungstate scheelite structured nanoparticles |
| title_fullStr | Preparation and characterisation of tungstate scheelite structured nanoparticles |
| title_full_unstemmed | Preparation and characterisation of tungstate scheelite structured nanoparticles |
| title_short | Preparation and characterisation of tungstate scheelite structured nanoparticles |
| title_sort | preparation and characterisation of tungstate scheelite structured nanoparticles |
| topic | QD Chemistry |
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