Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content
Effects of adding excess antimony during the polyol process for synthesizing CoSb3 compound have been studied in this project. It was found that with an initial atomic ratio Co:Sb = 1:4.5, the final sample after hot press contained a single CoSb3 phase. With higher initial Sb levels, extra free Sb p...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
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2009
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| Online Access: | http://hdl.handle.net/10356/15332 |
| _version_ | 1826127866933280768 |
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| author | Wu, Zhenqi. |
| author2 | Hng Huey Hoon |
| author_facet | Hng Huey Hoon Wu, Zhenqi. |
| author_sort | Wu, Zhenqi. |
| collection | NTU |
| description | Effects of adding excess antimony during the polyol process for synthesizing CoSb3 compound have been studied in this project. It was found that with an initial atomic ratio Co:Sb = 1:4.5, the final sample after hot press contained a single CoSb3 phase. With higher initial Sb levels, extra free Sb phase approved in the final products as impurity. With increasing Sb atomic fraction, Seebeck coefficients of the sample was improved. However, the electrical resistivity values increased to a larger extent. As a result, excess Sb gave rise to lower power factor, and hence resulting in poorer thermoelectric performance. |
| first_indexed | 2024-10-01T07:15:29Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/15332 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:15:29Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/153322023-03-04T15:41:31Z Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content Wu, Zhenqi. Hng Huey Hoon School of Materials Science and Engineering DRNTU::Engineering::Materials Effects of adding excess antimony during the polyol process for synthesizing CoSb3 compound have been studied in this project. It was found that with an initial atomic ratio Co:Sb = 1:4.5, the final sample after hot press contained a single CoSb3 phase. With higher initial Sb levels, extra free Sb phase approved in the final products as impurity. With increasing Sb atomic fraction, Seebeck coefficients of the sample was improved. However, the electrical resistivity values increased to a larger extent. As a result, excess Sb gave rise to lower power factor, and hence resulting in poorer thermoelectric performance. Bachelor of Engineering (Materials Engineering) 2009-04-27T08:27:55Z 2009-04-27T08:27:55Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/15332 en 47 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials Wu, Zhenqi. Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content |
| title | Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content |
| title_full | Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content |
| title_fullStr | Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content |
| title_full_unstemmed | Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content |
| title_short | Synthesis and characterization of pure CoSb3 nanoparticles of different Sb content |
| title_sort | synthesis and characterization of pure cosb3 nanoparticles of different sb content |
| topic | DRNTU::Engineering::Materials |
| url | http://hdl.handle.net/10356/15332 |
| work_keys_str_mv | AT wuzhenqi synthesisandcharacterizationofpurecosb3nanoparticlesofdifferentsbcontent |