2017 Fiscal Year Final Research Report
Laser assisted nano material synthesis and morphological control by controling physical property of supercritical fluid
| Project/Area Number |
15K06540
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Kanazawa University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
瀬戸 章文 金沢大学, 自然システム学系, 教授 (40344155)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 超臨界二酸化炭素 / レーザーアブレーション / プルーム / ナノカーボン / ダイヤモンド / グラファイト / アモルファス |
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| Outline of Final Research Achievements |
We performed generation of nanocarbon by irradiating the graphite target with laser light in supercritical carbon dioxide. The density of supercritical carbon dioxide was adjusted by changing the pressure. As a result of morphological observation and particle size distribution measurement of the obtained nanocarbon, most of the nanoparticles were aggregates of amorphous carbon having low crystallinity under low pressure and high pressure conditions. On the other hand, a lot of isolated spherical particles were observed in the nanoparticles generated under the condition of the critical density (approximately 8 MPa). It is indicated that particularly fine particles will have high crystallinity and show a diamond structure based on the distance between crystal lattices by the results of high resolution TEM image and restricted field electron beam diffraction image.
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| Free Research Field |
化学工学
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