The Constraction of a Pulsed-Arc Discharge Apparatus for Fullerenes and Nanotubes

富勒烯和纳米管脉冲电弧放电装置的构建

• 批准号: 08554020
• 负责人: SHINOHARA Hisanori
• 金额: $ 10.62万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08554020/
• 关键词: Pulsed-Arc Discharge; Fullerenes; Single-Wall carbon Nanotubes; SWNTs; Metallofullerenes; Furnace; High-temperature; レーザー脱離質量分析; マイクロクラスター; ガス中レーザー蒸発法; クラスター源

A new type of a pulsed-arc discharge sorce has been developed. The pulsed-arc source has several characteristics which includes (i) easy to combine with mass spectrometer, (ii) variable pulsed width, (iii) variable temperature and (iV) different discharge mechanism of graphite rods. The results of pulsed-arc of graphite indicate that fullerenes and single-wall carbon nanotubes (SWNTs) are formed only high temperature conditions above 800 deg. The fullerenes and SWNTs are completely absent under ambient temperature conditions. This is a striking contrast to the conventional steady arc discharge of graphites, where fullerenes and SWNTs are formed under room temperature discharge. The present results strongly suggests that a thermal anealing process is absolutely necessary to generate fullerenes and SWNTs.The present pulsed-arc discharge appratus is also applicable to produce new types of endohedral metallofullerenes and endohedral SWNTs.

研制了一种新型脉冲电弧放电电源。脉冲电弧源具有易于与质谱仪联合收割机结合、脉冲宽度可变、温度可变和石墨棒放电机制不同等特点。石墨脉冲电弧的结果表明，富勒烯和单壁碳纳米管（SWNTs）只有在800 ℃以上的高温条件下才能形成。在环境温度条件下，富勒烯和单壁碳纳米管完全不存在。这是一个显着的对比，传统的稳定电弧放电的石墨，其中富勒烯和单壁碳纳米管在室温下放电形成。实验结果表明，热退火过程是制备富勒烯和单壁碳纳米管的必要条件，脉冲电弧放电装置也适用于制备新型的内嵌金属富勒烯和内嵌单壁碳纳米管。

项目成果

篠原久典 その他: "ESR Studies on the Formation of La@C82 Isomers in Arc Synthesis" Chem.Phys.Lett.250. 80-84 (1996)

Hisanori Shinohara 其他：“电弧合成中 La@C82 异构体形成的 ESR 研究”Chem.Phys.Lett.250 (1996)。

篠原久典 その他: "Production and Characterization of Boron-and Silicon-Doped Carbon Clusters" Chem.Phys.Lett.256. 269-273 (1996)

Hisanori Shinohara 其他：“硼和硅掺杂碳簇的生产和表征”Chem.Phys.Lett.256（1996）。

篠原久典 その他: "Production and Isolation of Ca@C82(I-IV)and Ca@C84(I,II)Metallofullerenes." J.Am.Chem.Soc.118. 11309-11310 (1996)

Hisanori Shinohara 其他人：“Ca@C82(I-IV) 和 Ca@C84(I,II)Metallofulrerene 的生产和分离。”J.Am.Chem.Soc.11309-11310 (1996)。

篠原久典、斎藤弥八: "名古屋大学出版会" フラーレンの化学と物理, 283 (1997)

筱原久典、齐藤弥八：《名古屋大学出版社》富勒烯化学与物理，283（1997）

T.J.S.Dennis: "Isolation and Characterization of Two Isomers of C_<84>" J.Chem.Soc.Chem.Commun.in press. (1998)

T.J.S.Dennis：“C_<84> 两种异构体的分离和表征”J.Chem.Soc.Chem.Commun.in press。