Synthesis of functional nanocrystallites through reactive thermal plasma processing
A method of synthesizing functional nanostructured powders through reactive thermal plasma processing has been developed. The synthesis of nanosized titanium oxide powders was performed by the oxidation of solid and liquid precursors. Quench gases, either injected from the shoulder of the reactor or...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2007-01-01
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| Series: | Science and Technology of Advanced Materials |
| Online Access: | http://www.iop.org/EJ/abstract/1468-6996/8/7-8/A11 |
| _version_ | 1818179373542408192 |
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| author | Takamasa Ishigaki and Ji-Guang Li |
| author_facet | Takamasa Ishigaki and Ji-Guang Li |
| author_sort | Takamasa Ishigaki and Ji-Guang Li |
| collection | DOAJ |
| description | A method of synthesizing functional nanostructured powders through reactive thermal plasma processing has been developed. The synthesis of nanosized titanium oxide powders was performed by the oxidation of solid and liquid precursors. Quench gases, either injected from the shoulder of the reactor or injected counter to the plasma plume from the bottom of the reactor, were used to vary the quench rate, and therefore the particle size, of the resultant powders. The experimental results are well supported by numerical analysis on the effects of the quench gas on the flow pattern and temperature field of the thermal plasma as well as on the trajectory and temperature history of the particles. The plasma-synthesized TiO2 nanoparticles showed phase preferences different from those synthesized by conventional wet-chemical processes. Nanosized particles of high crystallinity and nonequilibrium chemical composition were formed in one step via reactive thermal plasma processing. |
| first_indexed | 2024-12-11T21:02:51Z |
| format | Article |
| id | doaj.art-35e8eb778fe2495a81eebb2fc5fc98b5 |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-12-11T21:02:51Z |
| publishDate | 2007-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-35e8eb778fe2495a81eebb2fc5fc98b52022-12-22T00:50:56ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142007-01-0187-8617Synthesis of functional nanocrystallites through reactive thermal plasma processingTakamasa Ishigaki and Ji-Guang LiA method of synthesizing functional nanostructured powders through reactive thermal plasma processing has been developed. The synthesis of nanosized titanium oxide powders was performed by the oxidation of solid and liquid precursors. Quench gases, either injected from the shoulder of the reactor or injected counter to the plasma plume from the bottom of the reactor, were used to vary the quench rate, and therefore the particle size, of the resultant powders. The experimental results are well supported by numerical analysis on the effects of the quench gas on the flow pattern and temperature field of the thermal plasma as well as on the trajectory and temperature history of the particles. The plasma-synthesized TiO2 nanoparticles showed phase preferences different from those synthesized by conventional wet-chemical processes. Nanosized particles of high crystallinity and nonequilibrium chemical composition were formed in one step via reactive thermal plasma processing.http://www.iop.org/EJ/abstract/1468-6996/8/7-8/A11 |
| spellingShingle | Takamasa Ishigaki and Ji-Guang Li Synthesis of functional nanocrystallites through reactive thermal plasma processing Science and Technology of Advanced Materials |
| title | Synthesis of functional nanocrystallites through reactive thermal plasma processing |
| title_full | Synthesis of functional nanocrystallites through reactive thermal plasma processing |
| title_fullStr | Synthesis of functional nanocrystallites through reactive thermal plasma processing |
| title_full_unstemmed | Synthesis of functional nanocrystallites through reactive thermal plasma processing |
| title_short | Synthesis of functional nanocrystallites through reactive thermal plasma processing |
| title_sort | synthesis of functional nanocrystallites through reactive thermal plasma processing |
| url | http://www.iop.org/EJ/abstract/1468-6996/8/7-8/A11 |
| work_keys_str_mv | AT takamasaishigakiandjiguangli synthesisoffunctionalnanocrystallitesthroughreactivethermalplasmaprocessing |