Isolation, Purification, and Application of Single Wall Carbon Nanotubes Using Biopolymer.

使用生物聚合物的单壁碳纳米管的分离、纯化和应用。

• 批准号: 14550691
• 负责人: ISHII Tadahiro
• 金额: $ 2.56万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550691/
• 关键词: Carbon Nanotubes; Single Wall Carbon Nanotubes; Gelatin; Polysaccharide; Laser Ablation; Purification; Composite; カーボンナノチューブ

The single wall carbon nanotubes (SWNTs) are novel molecular-scale tubes exhibiting unique properties which depend on their diameter and chirality. However, most of the raw and available SWNTs samples contain not only SWNTs but also other carbonaceous impurities such as amorphous carbon, fullerenes, nanoparticles, and transition metals that are introduced as a catalyst during the synthesis of the SWNTs. Hence, We have developed a novel method for the purification of single wall carbon nanotubes (SWNTs) by annealing in air and dispersing the SWNTs in an aqueous solution of gelatin or carboxymethylcellulose (CMC). The evaluation of purity of the resulting SWNTs was done by means of analytical techniques such as electron microscopy, Raman spectroscopy, and thermogravimetric analysis (TGA). As a result, it was revealed that the gelatin or the CMC played an effective role in exfoliation of the SWNT bundles as a good dispersion reagents and thereby, SWNTs with appreciably high quality were prepared.On the other hand, Highly graphited carbon nanofibers (CNFs) have been synthesized by catalytic decomposition of ethanol. The Fe/Co bimetalic catalyst was employed in this procedure and the metal catalyst particles were generated by the pulsed laser deposition on the tungsten substrate. The obtained CNFs were investigated by the SEM, TEM, Electron diffraction and Raman spectroscopy. From the electron microscope observation, the synthesized CNFs have diameters in rage of 40〜100nm and length was up to 2μm. The Multi Wall Carbon Nanotubes (MWNTs) were also observed in obtained sample. As a result, it was revealed that the pulsed laser deposition is powerful tool to produce the nano-particles of the catalyst.

单壁碳纳米管（SWNT）是具有独特特性的新型分子尺度管，这些试管取决于其直径和手性。但是，大多数原始的SWNT样品不仅包含SWNT，还包含其他碳质杂质，例如无定形碳，富勒烯，纳米颗粒和过渡金属，它们在合成SWNT期间作为催化剂引入。因此，我们开发了一种新的方法来通过退火并将SWNT分散在明胶或羧甲基纤维素（CMC）水溶液中，以纯化单壁碳纳米管（SWNT）。通过分析技术（例如电子显微镜，拉曼光谱和热重分析）（TGA）进行分析技术进行评估。结果，据透露，明胶或CMC在去角质中发挥了有效的作用，作为一种很好的分散试剂，因此准备了高质量的SWNT。在另一方面，高分石化的碳纳米纤维（CNF）已通过凝集式凝集素乙醇含量进行了合成。在此过程中采用了Fe/Co双催化剂，并通过脉冲激光沉积在钨基材上产生了金属催化剂颗粒。通过SEM，TEM，电子衍射和拉曼光谱研究了获得的CNF。从电子显微镜观察中，合成的CNF的直径为40-100nm，长度高达2μm。在获得的样品中还观察到了多壁碳纳米管（MWNT）。结果，揭示了脉冲激光沉积物是产生催化剂纳米颗粒的强大工具。

项目成果

Teruo Takahashi, Katsunori Tsunoda, Hirofumi Yajima, Tadahiro Ishii: "Dispersion and Purification of Single Wall Carbon Nanotubes Using Carboxymethylcellulose."Japanese Journal of Applied Physics. (in press). (2004)

Teruo Takahashi、Katsunori Tsunoda、Hirofumi Yajima、Tadahiro Ishii：“使用羧甲基纤维素分散和纯化单壁碳纳米管。”日本应用物理学杂志。

Teruo Takahashi, Katsunori Tsunoda, Hirofumi Yajima, Tadahiro Ishii: "Purification of Single Wall Carbon Nanotubes Using Gelatin"Japanese Journal of Applied Physics. 43(3). 1227-1230 (2004)

Teruo Takahashi、Katsunori Tsunoda、Hirofumi Yajima、Tadahiro Ishii：“使用明胶纯化单壁碳纳米管”日本应用物理学杂志。

Purification of Single Wall Carbon Nanotubes Using Gelatin

使用明胶纯化单壁碳纳米管

• 发表时间: 2004
• 期刊: Jpn. J. Appl. Phys. 43
• 作者: T.Takahashi;K.Tsunoda;H.Yajima;T.Ishii
• 通讯作者: T.Ishii

Dispersion and purification of single-wall carbon nanotubes using carboxymethylcellulose

• DOI: 10.1143/jjap.43.3636
• 发表时间: 2004-06-01
• 期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
• 作者: Takahashi, T;Tsunoda, K;Ishii, T
• 通讯作者: Ishii, T

Katsunori Tsunoda, Teruo Takahashi, Hirofumi Yajima, Tadahiro Ishii: "MODIFICATION OF SINGLE-WALL CARBON NANOTUBES BY LASER IRRADIATION IN SOLVENTS"The Review of Laser Engineering. (2003)

Katsunori Tsunoda、Teruo Takahashi、Hirofumi Yajima、Tadahiro Ishii：“在溶剂中通过激光辐照对单壁碳纳米管进行改性”激光工程评论。