公开(公告)号：US20210188643A1

公开(公告)日：2021-06-24

申请号：US16923092

申请日：2020-07-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seung Min KIM ,  Sung Hyun LEE ,  Jun Beom PARK ,  Ji Hong PARK ,  Dong Myeong LEE ,  Sook Young MOON ,  Hyeon Su JEONG

IPC: C01B32/164 ,  C01B32/162

Abstract: The present disclosure provides an apparatus capable of continuously producing carbon nanotubes having high crystallinity, a low residual catalyst content and a high aspect ratio. The apparatus for producing carbon nanotubes includes: a reaction unit configured to synthesize carbon nanotubes (CNTs), a supply unit configured to supply a carbon source to the reaction unit through a supply pipe; and a collection unit configured to collect carbon nanotubes discharged from the reaction unit, wherein the reaction unit may include a chemical vapor deposition reactor.

公开(公告)号：US20230149914A1

公开(公告)日：2023-05-18

申请号：US17984776

申请日：2022-11-10

Applicant: Korea Institute of Science and Technology ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyeon Su JEONG ,  Ji Yoon SONG ,  Hee Tae JUNG ,  Chan Sol KIM

IPC: B01J35/00 ,  B82Y30/00 ,  B82Y40/00 ,  B01J37/02 ,  B01J37/08 ,  B01J37/00

CPC classification number: B01J35/006 ,  B82Y30/00 ,  B82Y40/00 ,  B01J37/0236 ,  B01J37/0217 ,  B01J37/08 ,  B01J37/009

Abstract: The present application relates to a composite structure, a method of manufacturing the composite structure, and a catalyst including the same. In the composite structure of the present application, metal nanoparticles having a very small size are uniformly formed at a high density regardless of a type of metal. The method of manufacturing the composite structure of the present application can quickly prepare the composite structure in which metal nanoparticles having a very small size are formed uniformly at a high density regardless of the type of metal.

公开(公告)号：US20220227631A1

公开(公告)日：2022-07-21

申请号：US17387305

申请日：2021-07-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Bon Cheol KU ,  Jun Yeon HWANG ,  Hyeon Su JEONG ,  Nam Ho YOU ,  Nam Dong KIM ,  Dae Yoon KIM ,  Dong Ju LEE ,  Seo Gyun KIM ,  Seung Ki HONG ,  Seung Woo RYU

IPC: C01B32/168 ,  D01F9/12 ,  D01D5/12

Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.

公开(公告)号：US20210323826A1

公开(公告)日：2021-10-21

申请号：US17101198

申请日：2020-11-23

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyeon Su JEONG ,  Seung Min KIM ,  Sook Young MOON ,  Dong Myeong LEE

IPC: C01B32/168 ,  D01F9/12 ,  D01D5/00

Abstract: Disclosed is a method for mass-producing densified carbon nanotube fiber. The method includes preparing carbon nanotube fiber, swelling the carbon nanotube fiber by applying an acid solution thereto, and stretching the carbon nanotube fiber, coagulating the stretched carbon nanotube fiber so as to remove the acid solution present therein, and drying the coagulated carbon nanotube fiber.