Structure and Electronic States of Guest Molecules in Nano-spaces Studied by in-situ NMR

原位核磁共振研究纳米空间客体分子的结构和电子态

• 批准号: 12640570
• 负责人: OGATA Hironori
• 金额: $ 1.92万
• 依托单位: Hosei University (2001-2002)Okazaki National Research Institutes (2000)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12640570/
• 关键词: Single-walled Nanotubes; Nuclear Magnetic Resonance; gas adsorption property; fullerenes; functional Nano-space; ^<13>C-NMR; C_<60>内包SWNT; C_<70>内包SWNT; 核磁気共鳴分光法

^<129>Xe-NMR of Xenon gas adsorbed single walled nanotubes were studied by solid state NMR. Heat treatment after H_2O_2 treatments was prove to be effect to open the cap and Xe gas confined inside the tube space. We proved that ^<129>Xe-NMR of Xenon gas adsorption is very easy way to check the opening the ends of SWNTs and determine the tube-diameter and it s distribution. Electronic states of pristine and K or Br_2 doped single wall carbon nanotube aggregates (SWNTs) were studied by both ^<13>C-NMR at low temperature and Raman spectroscopy. The effect of opening the ends of SWNTs on the intercalation level and the evolution of electronic states were also studied. Electronic states and molecular dynamics of new hybrid materials, single-wall carbon nanotubes encapsulating fullerenes (C_<60>@SWNTs and C_<70>@SWNTs) were investigated by ^<13>C-NMR.

通过固态NMR研究了氙气吸附的单壁纳米管的129Xe-NMR。 H_2O_2处理后的热处理被证明可以有效地打开盖子并将Xe气体限制在管内空间内。我们证明，氙气吸附的^<129>Xe-NMR是检查单壁碳纳米管末端开口并确定管径及其分布的非常简单的方法。通过低温13 C-NMR和拉曼光谱研究原始和K或Br_2掺杂的单壁碳纳米管聚集体(SWNT)的电子态。还研究了打开单壁碳纳米管末端对插层能级和电子态演化的影响。通过^ 13 C-NMR研究了新型杂化材料、包封富勒烯的单壁碳纳米管(C_<60>@SWNTs和C_<70>@SWNTs)的电子态和分子动力学。

项目成果

Y.TAKABAYASHI, Y.KUBOZONO, S.FUJIKI, S.KASHINO, K.ISHII, H.SUEMATSU, H.OGATA: "Study on the Physical Properties of NA_4C_<60>"Nanonetwork Materials. 345-348 (2001)

Y.TAKABAYASHI、Y.KUBOZONO、S.FUJIKI、S.KASHINO、K.ISHII、H.SUEMATSU、H.OGATA：“NA_4C_<60>的物理性质研究”纳米网络材料。

Y. Maruyama, S. Motohashi, K. Suzuki, S. Takagi, H. Ogata: "Structures and magnetic properties of high-temperature reaction products of cerium metal and C_<60> solid"Solid State Commun. Vol.115. 463-466 (2000)

Y. Maruyama、S. Motohashi、K. Suzuki、S. Takagi、H. Ogata：“金属铈与C_<60>固体的高温反应产物的结构和磁性能”Solid State Commun。

S.MOTOHASHI, Y.MARUYAMA, K.WATANABE, K.SUZUKI, S.TAKAGI, H.Ogata: "Unusual Magnetic Properties of High-Temperature Reaction Products of Cerium Metal and C_<60> Solid"Nanonetwork Materials. 365-368 (2001)

S.MOTOHASHI、Y.MARUYAMA、K.WATANABE、K.SUZUKI、S.TAKAGI、H.Ogata：“金属铈和 C_<60> 固体的高温反应产物的异常磁性”纳米网络材料。

S. Fujiki, Y. Kubozono, S. Emura, Y. Takabayashi, S. Kashino, A. Fujiwara. K. Ishii, H. Suematsu, Y. Murakami, Y. Iwasa, T. Mitani, H. Ogata: "Structure and Raman Scatterings of C_<S3>C_<60> under High Pressure"Phys. Rev. B. Vol.62. 5366-5369 (2000)

S. Fujiki，Y. Kubozono，S. Emura，Y. Takabayashi，S. Kashino，A. Fujiwara。

緒方啓典他: "カーボンナノチューブの合成・評価,実用化とナノ分散・配合制御"技術情報技術協会. 312 (2003)

Hironori Ogata 等人：“碳纳米管的合成和评估、实际应用和纳米分散/配方控制”日本信息技术协会 312 (2003)。