公开(公告)号：US11069902B2

公开(公告)日：2021-07-20

申请号：US15703653

申请日：2017-09-13

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ilkwon Oh ,  Seok-Hu Bae ,  Ji Eun Kim

IPC: H01M4/90 ,  H01M4/88 ,  H01M4/86 ,  C25B1/04 ,  C25B11/031 ,  C25B11/057 ,  C25B11/091

Abstract: The present invention provides a catalyst electrode for oxygen evolution comprising an electrode current collector comprising a carbon fiber fabric, a nanowire layer comprising a metal oxide-based porous nanowire grown radially from the surface of the carbon fiber, and a porous carbon coating layer disposed around the outer surface of the nanowire, thereby maximizing the specific surface area and increasing the electron transfer rate, and thus exhibiting an excellent catalytic activity for oxygen evolution reaction, and a preparation method thereof.

公开(公告)号：US09486773B2

公开(公告)日：2016-11-08

申请号：US14361067

申请日：2012-12-05

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Il-Kwon Oh ,  Hyun-Jun Kim ,  Seok-Hu Bae

IPC: B01J19/12 ,  C01B31/02 ,  C01B31/04

CPC classification number: B01J19/126 ,  C01B32/158 ,  C01B32/184 ,  C01B2202/08

Abstract: The present invention relates to a hierarchical structure of graphene-carbon nanotubes and a method for preparing the same, and, more specifically, to a method for growing graphene into carbon nanotubes having a hierarchical structure by adding metal nanoparticles on the graphene. According to the present invention, carbon nanotubes having a hierarchical structure, which have an increased specific surface area compared to existing carbon nanotubes, can be obtained, and a carbon nanotube structure which is metal-functionalized by a metal precursor can be obtained. In addition, carbon nanotubes can be prepared in an environmentally-friendly manner by the use of microwaves.

Abstract translation: 本发明涉及石墨烯 - 碳纳米管的层次结构及其制备方法，更具体地说，涉及通过在石墨烯上添加金属纳米粒子将石墨烯生长成具有层次结构的碳纳米管的方法。 根据本发明，可以获得具有与现有碳纳米管相比具有增加的比表面积的分层结构的碳纳米管，并且可以获得由金属前体金属官能化的碳纳米管结构。 此外，可以通过使用微波以环保的方式制备碳纳米管。

公开(公告)号：US20150107985A1

公开(公告)日：2015-04-23

申请号：US14361067

申请日：2012-12-05

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Il-Kwon Oh ,  Hyun-Jun Kim ,  Seok-Hu Bae

IPC: B01J19/12 ,  C01B31/04

CPC classification number: B01J19/126 ,  C01B32/158 ,  C01B32/184 ,  C01B2202/08

Abstract: The present invention relates to a hierarchical structure of graphene-carbon nanotubes and a method for preparing the same, and, more specifically, to a method for growing graphene into carbon nanotubes having a hierarchical structure by adding metal nanoparticles on the graphene. According to the present invention, carbon nanotubes having a hierarchical structure, which have an increased specific surface area compared to existing carbon nanotubes, can be obtained, and a carbon nanotube structure which is metal-functionalized by a metal precursor can be obtained. In addition, carbon nanotubes can be prepared in an environmentally-friendly manner by the use of microwaves.

Abstract translation: 本发明涉及石墨烯 - 碳纳米管的层次结构及其制备方法，更具体地说，涉及通过在石墨烯上添加金属纳米粒子将石墨烯生长成具有层次结构的碳纳米管的方法。 根据本发明，可以获得具有与现有碳纳米管相比具有增加的比表面积的分层结构的碳纳米管，并且可以获得由金属前体金属官能化的碳纳米管结构。 此外，可以通过使用微波以环保的方式制备碳纳米管。