公开(公告)号：JP4624368B2

公开(公告)日：2011-02-02

申请号：JP2007025756

申请日：2007-02-05

Applicant: 三星エスディアイ株式会社

Inventor： 相鉉 朴 ,  晶姫 李 ,  廷娜 許 ,  太遠 鄭

IPC: C01B31/02 ,  B01J23/755 ,  H01M4/88 ,  H01M4/96 ,  H01M8/10

CPC classification number: H01M4/90 ,  B01J21/185 ,  B01J23/745 ,  B01J23/75 ,  B01J23/755 ,  B01J35/1019 ,  B01J35/1023 ,  B01J37/0203 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/16 ,  C01B32/162 ,  C01B2202/22 ,  C01B2202/32 ,  H01M4/9083 ,  H01M4/92 ,  H01M4/926

Abstract: A carbon nanotube, a method of preparing the same, a supported catalyst including the same, and a fuel cell using the supported catalyst are provided. The method of preparing the carbon nanotube includes: depositing a metal catalyst in single wall nanotubes and growing multi wall nanotubes over the single wall nanotubes using the metal catalyst. The carbon nanotubes of the present invention have satisfactory specific surface area and low surface resistance. Thus, the carbon nanotubes perform remarkably better than a conventional catalyst carrier. Accordingly, the carbon nanotubes, when used as a catalyst carrier of an electrode for a fuel cell, can improve the electrical conductivity of the fuel cell. In addition, a fuel cell employing the electrode has excellent efficiency and overall performance.

公开(公告)号：JP4611958B2

公开(公告)日：2011-01-12

申请号：JP2006283783

申请日：2006-10-18

Applicant: 三星エスディアイ株式会社

Inventor： 相鉉 朴 ,  晶姫 李 ,  錫光 杜 ,  東民 林 ,  廷娜 許 ,  太遠 鄭

IPC: C01B31/02 ,  B01J23/42 ,  B01J23/50 ,  B82B3/00 ,  H01J1/304

CPC classification number: H01B1/22 ,  B01J21/185 ,  B01J23/42 ,  B01J23/462 ,  B01J37/0203 ,  B01J37/16 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/176 ,  C01B2202/34 ,  D01F11/12 ,  H01B1/24 ,  H01J1/304 ,  H01J9/025 ,  H01J2201/30453

Abstract: Carbon nanotubes and metal particle-containing carbon nanotubes are provided. The carbon nanotubes have increased surface area. A method of cutting carbon nanotubes is also provided. According to the method, the dispersion properties of the carbon nanotubes are improved by simplifying the structural changes and/or surface modifications of the carbon nanotubes, thereby enabling insertion of an active substance into the inner walls of the carbon nanotubes and increasing the insertion efficiency.