公开(公告)号：US12151939B2

公开(公告)日：2024-11-26

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 ,  D01D5/12 ,  D01F9/12

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：US11959193B2

公开(公告)日：2024-04-16

申请号：US17701398

申请日：2022-03-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dae Yoon Kim ,  Ki Hyun Ryu ,  Bon Cheol Ku ,  Jun Yeon Hwang ,  Nam Dong Kim ,  Dong Ju Lee ,  Seo Gyun Kim

IPC: D01D5/12 ,  C08G69/26 ,  C08K3/04 ,  D01D1/02 ,  D01D5/06 ,  D01F1/09 ,  D01F1/10 ,  D01F6/60 ,  D01F9/12 ,  D02J1/22 ,  C08J5/00

CPC classification number: D01F1/10 ,  C08G69/26 ,  C08K3/041 ,  D01D1/02 ,  D01D5/06 ,  D01F6/605 ,  D01F9/12 ,  C08G2250/00 ,  C08J5/005 ,  C08K2201/011 ,  D10B2331/02

Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.

公开(公告)号：US20250042746A1

公开(公告)日：2025-02-06

申请号：US18486319

申请日：2023-10-13

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Korea Institute of Science and Technology

Inventor： Gwan Sik Kim ,  Kyong Hwa Song ,  Deok Woo Yun ,  Hyeon Su Jeong ,  Seung Min Kim ,  Nam Dong Kim ,  Sung Ju Lee

IPC: C01B32/174 ,  H01G11/36

Abstract: The present disclosure describes to a method embodiment for preparing a carbon nanotube composite that includes performing a first ultrasonic treatment on a first mixture containing a carbon nanotube (CNT) fiber and an acid to form a carbon nanotube fiber swollen body, and performing a second ultrasonic treatment on a second mixture containing the carbon nanotube fiber swollen body, an aromatic monomer, and an initiator to form a carbon nanotube composite including a surface coated with an aromatic monomer-derived conductive polymer, and an embodiment of the carbon nanotube composite prepared therefrom.

公开(公告)号：US11801494B2

公开(公告)日：2023-10-31

申请号：US17271206

申请日：2019-11-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sukang Bae ,  Seoung-Ki Lee ,  Dae-Young Jeon ,  Myung Jong Kim ,  Nam Dong Kim

IPC: B01J23/75 ,  B01J23/755 ,  B01J21/02 ,  B01J21/18 ,  B01J23/46 ,  B01J23/745 ,  B01J27/02 ,  B01J27/14 ,  B01J37/02

CPC classification number: B01J23/755 ,  B01J21/02 ,  B01J21/18 ,  B01J23/464 ,  B01J23/468 ,  B01J23/745 ,  B01J23/75 ,  B01J27/02 ,  B01J27/14 ,  B01J37/0215

Abstract: Provided is a method for manufacturing a single-atom catalyst supported on a carbon support, including treating a mixture of a precursor of a carbon support and a precursor of a hetero element other than carbon through a dry vapor phase process, thereby supporting, on a carbon support, a single-atom catalyst containing a hetero element other than carbon.