Molecular absorption and desorption phenomena of SWNT single nanochannel processed by laser ablation process

激光烧蚀工艺加工的SWNT单纳米通道的分子吸收和解吸现象

• 批准号: 24656140
• 负责人: KOHNO MASAMICHI
• 金额: $ 2.58万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656140/
• 关键词: ナノチューブ; レーザー; 吸着; レーザー加工; 吸脱着; 細孔; SWNT; ナノチャンネル

A single walled carbon nanotube, which adsorbed water molecule in its nano channel, was observed using Raman spectroscopy, and two sample's spectrums were compared under the same conditions. The SWNT samples that were vertically aligned on the silicon substrate were used. One of the samples was not covered by polymer whereas the other sample was covered by polymer. In our experiment, a nano channel was made using a nanosecond pulse laser. The cell with the laser-processed sample in it was set on the Raman spectroscopy's platform. The SWNT successfully adsorbed water molecule in its nano channel. With the Raman spectroscopy, Radial Breathing Mode (RBM), D-band, and G-band were mainly observed. The RBM, D-band, and G-band originated from radial vibration frequency, defective structure, and graphite structure respectively. One of the samples that is not covered by polymer showed the RBM shift and diminishing due to water molecules adsorption on the surface or in nano channel.

利用拉曼光谱观察到单壁碳纳米管在其纳米通道中吸附了水分子，并在相同条件下对两个样品的光谱进行了比较。使用了垂直排列在硅衬底上的SWNT样品。其中一个样品没有被聚合物覆盖，而另一个样品被聚合物覆盖。在我们的实验中，我们用纳秒脉冲激光制作了一个纳米通道。装有激光处理过的样品的池被放置在拉曼光谱的平台上。单壁碳纳米管在其纳米通道中成功吸附了水分子。拉曼光谱主要观察到径向呼吸模式(RBM)、D带和G带。RBM、D带和G带分别来源于径向振动频率、缺陷结构和石墨结构。其中一个没有被聚合物覆盖的样品，由于水分子吸附在表面或纳米通道中，导致RBM发生移动和减小。

项目成果

九州大学 大学院工学研究院 機械工学部門 熱流体物理研究室

九州大学大学院工学研究科机械工学科热流体物理实验室

Effect of Gas Pressure on the Density of Horizontally Aligned Single-Walled Carbon Nanotubes Grown on Quartz Substrates

• DOI: 10.1021/jp401681e
• 发表时间: 2013-06-06
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Inoue, Taiki;Hasegawa, Daisuke;Maruyama, Shigeo
• 通讯作者: Maruyama, Shigeo

CNT systhesis in gas flow with size selected metal paerticles under low pressure

低压下气流中碳纳米管合成，具有选定尺寸的金属颗粒

• 发表时间: 2012
• 期刊: Proceedings of the 24th International Symposium on Transport Phenomena
• 作者: Kazuhide SHIBATA;Yasuyuki TAKATA;Makoto HIRASAWA;Takafumi SETO;Masamichi KOHNO
• 通讯作者: Masamichi KOHNO

水晶基板上での水平配向単層カーボンナノチューブの成長過程

石英基底上水平排列单壁碳纳米管的生长过程

• 发表时间: 2012
• 作者: Kazuhide SHIBATA;Yasuyuki TAKATA;Makoto HIRASAWA;Takafumi SETO;Masamichi KOHNO;井ノ上泰輝,長谷川大祐,Saifullah Badar,千足昇平,丸山茂夫
• 通讯作者: 井ノ上泰輝,長谷川大祐,Saifullah Badar,千足昇平,丸山茂夫

SIZE CLASSIFICATION OF CNTS BY DIAMETER AND LENGTH IN LOW PRESSURE

低压下碳纳米管按直径和长度分类

• 发表时间: 2013
• 期刊: Proceedings of the 24th International Symposium on Transport Phenomena
• 作者: Tatsuya HISATSUGU;Kazuhide SHIBATA;Yasuyuki TAKATA;Makoto HIRASAWA;Takafumi SETO;Masamichi KOHNO
• 通讯作者: Masamichi KOHNO