Synthesis of Carbon Nanotubes over Composition and Shape Controlled Pd Binary Metal Nanopartkle Catalysts

组成和形状可控的 Pd 二元金属纳米颗粒催化剂合成碳纳米管

• 批准号: 17360385
• 负责人: MIYAKE Mikio
• 金额: $ 10.44万
• 依托单位: Japan Advanced Institute of Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360385/
• 关键词: Catalyst; Metal nanoparticle; Carbon nanotube; カーボンなのチューブ; 金属ナノワイヤー; 二元金属; 粒子径制御; 形態制御

This research aims to develop novel catalysts to prepare shape-controlled carbon nanotubes (CNT) based on our original nanotechnology to prepare composition- and structure-controlled metal nanoparticles. Here, we have prepared binary metal nanoparticles consisting of Pd-core and transition metal (Ni, Co, Fe)-shell as active catalytic species. CNTs prepared under various conditions over supported binary metal catalysts have been characterized, such as shape, structure, and crystalline. Principal results are summarized as follows: 1. Yields and shapes of CNTs changed significantly depending on kinds of catalyst supports. For example, CNTs produced with high yields over silica-alumina support. Interestingly, very long CNTs with constant diameter were produced over MgO support. Such CNTs may be expected as device application. 2. Structure of CNTs affected seriously by kinds of feed gases. When acetylene was used, CNTs with constant diameter of ca. 20 run were produced irrespective of the reaction temperature. On the other hand, CNTs produced from ethylene had large diameters, which increased depending on the reaction temperature. 3. CNTs produced from acetylene had developed hexagonal carbon lamellae, which arranged parallel to axis of CNTs, while those produced from ethylene were essentially amorphous. Specific CNTs with short lamellae arranged with an angle to CNT axis were produced from ethylene, which may reflect special core-shell structure of binary metal catalysts. 4. Kinds of transition metals (Ni, Co, Fe) of binary metal catalyst affect moderately to CNT.

本研究旨在开发新型催化剂，以制备形状控制的碳纳米管（CNT）的基础上，我们原来的纳米技术，以制备组成和结构控制的金属纳米粒子。在这里，我们制备了由Pd-核和过渡金属（Ni，Co，Fe）-壳组成的二元金属纳米粒子作为活性催化物种。在负载型二元金属催化剂上在不同条件下制备的碳纳米管已被表征，如形状，结构和结晶。主要研究结果如下：1.碳纳米管的产率和形状随催化剂载体的种类而变化。例如，在二氧化硅-氧化铝载体上以高产率生产的碳纳米管。有趣的是，非常长的碳纳米管具有恒定的直径产生MgO支持。这种碳纳米管有望作为器件应用。2.原料气的种类对碳纳米管的结构影响较大。当使用乙炔时，具有恒定直径的碳纳米管约。无论反应温度如何，均进行了20次运行。另一方面，由乙烯产生的CNT具有大的直径，其根据反应温度而增加。3.乙炔法制备的碳纳米管具有平行于碳纳米管轴向排列的六方碳片晶结构，而乙烯法制备的碳纳米管基本上是无定形的。以乙烯为催化剂制备的碳纳米管具有短片层结构，且与碳纳米管轴成一定角度排列，这可能反映了二元金属催化剂特殊的核壳结构。4.二元金属催化剂中过渡金属（Ni、Co、Fe）的种类对碳纳米管的生长有一定的影响。

项目成果

Synthesis and Size Control of Pt Nanocubes with High Selectivity Using the Additive Effect of NaI

• DOI: 10.1246/cl.2005.1050
• 发表时间: 2005-06
• 期刊: Chemistry Letters
• 影响因子: 1.6
• 作者: M. Yamada;Syusaku Kon;M. Miyake

Synthesis and Electronic Properties of Dinucleic Octaethylporphyin Der.ivatives Spaced with p-Phenylene Group

对亚苯基双核八乙基卟啉衍生物的合成及电子性质

• 发表时间: 2007
• 期刊: Sci.Technol.AdvMater. 8
• 作者: Nishi;K.;Y.Morikawa;R.Misumi;M.Kaminoyama;M. Arai;M.Arai;K.Miyabayashi;A. Goto;M. Yamada;N. Hayashi;Z. Shen;N. Hayashi;Z. Shen;A. Goto;M. Yamada;N. Hayashi;Z. Shen;N. Hayashi;Z.Shen;A.Goto;M.Yamada;N.Iiayashi
• 通讯作者: N.Iiayashi

金属ナノ粒子の構造・配列制御と高性能触媒への展開(招待講演)

金属纳米粒子结构与排列的控制及其在高性能催化剂中的应用（特邀报告）

• 发表时间: 2007
• 作者: M. Yamada;Preparation of Pt Nano-cube with Controlled Sizes Aims for the Development of High;N. Hayashi;M. Yamada;N. Kondo;三宅 幹夫;N.Kondo;N.Hayashi;M.Yamada;M.Yamada;M.Yamada;S-Y. Lee;M. Yamada;N. Kondo;N. Hayashi;M. Yamada;S-Y. Lee;M. Yamada;N. Kondo;N. Hayashi;M. Yamada;K. Miyabayashi;M.Yamada;M.Yamada;S-Y.Lee;S-Y.Lee;堀 秀信;M. Miyake;M. Miyake;M.Miyake;M. Miyake;M. Miyake;M.Miyake;三宅幹夫
• 通讯作者: 三宅幹夫

Structure and Arrangement Control of Metal Nanoparticles for Application as High Performance Catalysts (Invited Lecture)

高性能催化剂中金属纳米颗粒的结构与排列控制（特邀报告）

• 发表时间: 2007
• 作者: M. Yamada;Preparation of Pt Nano-cube with Controlled Sizes Aims for the Development of High;N. Hayashi;M. Yamada;N. Kondo;三宅 幹夫;N.Kondo;N.Hayashi;M.Yamada;M.Yamada;M.Yamada;S-Y. Lee;M. Yamada;N. Kondo;N. Hayashi;M. Yamada;S-Y. Lee;M. Yamada;N. Kondo;N. Hayashi;M. Yamada;K. Miyabayashi;M.Yamada;M.Yamada;S-Y.Lee;S-Y.Lee;堀 秀信;M. Miyake;M. Miyake;M.Miyake;M. Miyake;M. Miyake;M.Miyake;三宅幹夫;M. Miyake
• 通讯作者: M. Miyake

Structure and Arrangement Control of Metal Nanoparticles for Application as Catalysts of Fuel Cells (Invited Speaker)

燃料电池催化剂中金属纳米颗粒的结构与排列控制（特邀报告）

• 发表时间: 2007
• 作者: M. Yamada;Preparation of Pt Nano-cube with Controlled Sizes Aims for the Development of High;N. Hayashi;M. Yamada;N. Kondo;三宅 幹夫;N.Kondo;N.Hayashi;M.Yamada;M.Yamada;M.Yamada;S-Y. Lee;M. Yamada;N. Kondo;N. Hayashi;M. Yamada;S-Y. Lee;M. Yamada;N. Kondo;N. Hayashi;M. Yamada;K. Miyabayashi;M.Yamada;M.Yamada;S-Y.Lee;S-Y.Lee;堀 秀信;M. Miyake;M. Miyake;M.Miyake;M. Miyake;M. Miyake;M.Miyake;三宅幹夫;M. Miyake;三宅幹夫;M. Miyake;三宅幹夫;M. Miyake
• 通讯作者: M. Miyake