公开(公告)号：US20230182126A1

公开(公告)日：2023-06-15

申请号：US18079568

申请日：2022-12-12

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Hee-Yeon KIM ,  Yoonseok CHOI ,  Tae-woo KIM ,  Ji-haeng YU ,  Cha-heon KIM

IPC: B01J37/02 ,  B01J23/30 ,  B01J23/34 ,  B01J21/08 ,  B01J37/08

CPC classification number: B01J37/0238 ,  B01J23/30 ,  B01J23/34 ,  B01J21/08 ,  B01J37/08 ,  B01J37/0244

Abstract: According to various aspects and exemplary embodiments of the present disclosure, ultra-small catalyst particles having extremely high reactivity may be synthesized in single-atom or single-molecule state. When the ultra-small-sized single-atom or single-molecule catalyst is used, the use of metal raw materials can be minimized and, at the same time, catalytic activity may be maximized through maximized reactivity of the single-atom or single-molecule catalyst.

公开(公告)号：US20240351880A1

公开(公告)日：2024-10-24

申请号：US18631580

申请日：2024-04-10

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Hee-yeon KIM ,  Cha-heon KIM ,  So Jung KIM

IPC: C01B32/162 ,  B01J21/04 ,  B01J23/755 ,  B01J35/30 ,  B01J37/02 ,  B01J37/18 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/159 ,  H01M4/62

CPC classification number: C01B32/162 ,  B01J21/04 ,  B01J23/755 ,  B01J35/393 ,  B01J37/0221 ,  B01J37/18 ,  C01B32/159 ,  H01M4/625 ,  B82Y30/00 ,  B82Y40/00 ,  C01B2202/02 ,  C01B2202/22 ,  C01B2202/36 ,  C01P2004/01

Abstract: Provided is a method for preparing single-walled carbon nanotubes (SWCNTs), including the steps of: (a) depositing a metal catalyst in the form of single atom or atomic cluster on a catalyst support to prepare a single-atom catalyst or an atomic cluster catalyst; and (b) growing carbon nanotubes on the single-atom catalyst or the atomic cluster catalyst to prepare single-walled carbon nanotubes (SWCNTs). According to the method, it is possible to uniformly mass-produce single-walled carbon nanotubes (SWCNTs) having excellent heat conductivity, electroconductivity, mechanical strength, dispersibility, or the like.