Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu
Lithium substituted of magnesium oxide compounds were prepared via sol-gel method using magnesium acetate tetrahydrate and lithium acetate dehydrate as starting materials and oxalic acid as gelating agent. Five different composition of lithium substituted magnesium oxide; Li₀.₂ Mg₀.₉O, Li₀.₄Mg₀.₈O,...
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| Format: | Student Project |
| Language: | English |
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Faculty of Applied Sciences
2010
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| Online Access: | https://ir.uitm.edu.my/id/eprint/23038/ |
| _version_ | 1848805648066674688 |
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| author | Hasbu, Siti Nur Hazlinda |
| author_facet | Hasbu, Siti Nur Hazlinda |
| author_sort | Hasbu, Siti Nur Hazlinda |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | Lithium substituted of magnesium oxide compounds were prepared via sol-gel method using magnesium acetate tetrahydrate and lithium acetate dehydrate as starting materials and oxalic acid as gelating agent. Five different composition of lithium substituted magnesium oxide; Li₀.₂ Mg₀.₉O, Li₀.₄Mg₀.₈O, Li₀.₆Mg₀.₇O, Li₀.₈Mg₀.₆O and Li₁.₀Mg₀.₅O were prepared. The powder obtained was annealed at 950°C for 24 and 36 hours. The characterizations of these compounds were analyzed by using Thermal Gravimetric Analyzer, X-Ray Diffractometer and Scanning Electron Microscopy. The thermal study of magnesium oxide showed the temperature for stable formation of MgO was 500 °C and above. The results showed that, at 950 °C for 24 hours, only three different compositions of substituted compounds were accomplished, which were Li₀.₂Mg₀.₉O, Li₀.₄Mg₀.₈O and Li₀.₆Mg₀.₇O. By increasing the annealing time into 36 hours for the same annealing temperature, pure products of Li₀.₈Mg₀.₆O and Li₁.₀Mg₀.₅O were obtained with other compositions except for Li₀.₄Mg₀.₈O. The morphology of MgO and their substituted MgO were changed from flower-like into rock-like by increasing the amount of lithium ion in the metal oxide matrix. |
| first_indexed | 2025-11-14T22:14:22Z |
| format | Student Project |
| id | uitm-23038 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T22:14:22Z |
| publishDate | 2010 |
| publisher | Faculty of Applied Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-230382019-02-28T10:28:33Z https://ir.uitm.edu.my/id/eprint/23038/ Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu Hasbu, Siti Nur Hazlinda Magnesium Lithium substituted of magnesium oxide compounds were prepared via sol-gel method using magnesium acetate tetrahydrate and lithium acetate dehydrate as starting materials and oxalic acid as gelating agent. Five different composition of lithium substituted magnesium oxide; Li₀.₂ Mg₀.₉O, Li₀.₄Mg₀.₈O, Li₀.₆Mg₀.₇O, Li₀.₈Mg₀.₆O and Li₁.₀Mg₀.₅O were prepared. The powder obtained was annealed at 950°C for 24 and 36 hours. The characterizations of these compounds were analyzed by using Thermal Gravimetric Analyzer, X-Ray Diffractometer and Scanning Electron Microscopy. The thermal study of magnesium oxide showed the temperature for stable formation of MgO was 500 °C and above. The results showed that, at 950 °C for 24 hours, only three different compositions of substituted compounds were accomplished, which were Li₀.₂Mg₀.₉O, Li₀.₄Mg₀.₈O and Li₀.₆Mg₀.₇O. By increasing the annealing time into 36 hours for the same annealing temperature, pure products of Li₀.₈Mg₀.₆O and Li₁.₀Mg₀.₅O were obtained with other compositions except for Li₀.₄Mg₀.₈O. The morphology of MgO and their substituted MgO were changed from flower-like into rock-like by increasing the amount of lithium ion in the metal oxide matrix. Faculty of Applied Sciences 2010 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/23038/1/PPb_SITI%20NUR%20HAZLINDA%20HASBU%20AS%2010_5.pdf Hasbu, Siti Nur Hazlinda (2010) Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu. (2010) [Student Project] <http://terminalib.uitm.edu.my/23038.pdf> (Unpublished) |
| spellingShingle | Magnesium Hasbu, Siti Nur Hazlinda Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu |
| title | Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu |
| title_full | Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu |
| title_fullStr | Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu |
| title_full_unstemmed | Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu |
| title_short | Synthesis and characterization of lithium - substituted of magnesium oxide / Siti Nur Hazlinda Hasbu |
| title_sort | synthesis and characterization of lithium - substituted of magnesium oxide / siti nur hazlinda hasbu |
| topic | Magnesium |
| url | https://ir.uitm.edu.my/id/eprint/23038/ |